An inheritance pattern of autosomal genetic disorders is described as: For an autosomal recessive disorder to be expressed, two copies of the abnormal allele must be inherited and For an autosomal dominant disorder to be expressed, just one copy of the abnormal allele must be inherited.
From the given options, an inheritance pattern of autosomal genetic disorders can be described as to be expressed, two copies of the abnormal allele must be inherited in autosomal recessive disorder and to be expressed, just one copy of the abnormal allele must be inherited in autosomal dominant disorder.
This means that autosomal recessive disorders are recessive because two copies of the abnormal allele must be present, whereas autosomal dominant disorders are dominant because only one copy of the abnormal allele is required. Autosomal genetic disorders are illnesses caused by mutations in genes on chromosome pairs numbered 1-22. Autosomal genetic disorders are inherited in an autosomal fashion. It is critical to recognize these conditions because they may cause a variety of physical, developmental, or neurological symptoms.
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the development of pubic hair in males and females is considered a secondary sex characteristic because a. it is the second sex characteristic to emerge. b. it is not directly related to sexual reproduction. c. it occurs for some people but not all people. d. unlike a primary sex characteristic, it can be easily modified (by shaving).
The development of pubic hair in males and females is considered a secondary sex characteristic because it is not directly related to sexual reproduction. The correct option is B.
What are secondary sex characteristics?Secondary sex characteristics refer to physical characteristics that develop during puberty and distinguish between the two sexes.
While primary sex characteristics, such as the uterus and testes, are organs that are specifically associated with reproduction, secondary sex characteristics refer to other physical features that help differentiate males from females.
During puberty, both boys and girls develop pubic hair as one of their secondary sexual characteristics. The presence of pubic hair is not related to reproduction but it is used to distinguish males from females.
Thus, the correct option is B. It is not directly related to sexual reproduction.
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HELLLLLLPPPPPP
All of the following are responsibilities of members of the community EXCEPT:
A.
volunteering to help the local government
B.
participating in local government decision-making process
C.
providing political interference to support projects in their neighborhood
D.
organizing with other community members to create awareness of problems and solutions
The answer is B because the other answers are responsibilities for members of the community while B is when the community members had to participate in a local government process where they make decisions so that's why the answer is B. I hope this helps.
A person can improve flexibility at their joints by ______ such as holding their toes without bending their knees.
A person can improve flexibility at their joints by stretching such as holding their toes without bending their knees.
Stretching is an activity that aids in increasing flexibility, which has numerous health benefits, including Improved athletic performance, Reduced muscle tension, Improved circulation, Reduced risk of injury, Improved posture.
Stretching can be done in a variety of ways, including Hamstring stretch, Hip flexor stretch, Quad stretch, Chest stretch, Triceps stretch, Shoulder stretch, Calf stretch, Back stretch.
The best time to stretch is when your muscles are warm. After a warm-up, stretching should be done. This is because stretching cold muscles may result in injury. After exercising, it is also recommended to stretch. This can assist in the recovery process and reduce the chance of injury.
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How does an RNA polymerase differ from a DNA polymerase?
A) DNA polymerase recognizes only nucleotide triphosphates that contain deoxyribose sugars, whereas RNA polymerase recognizes nucleotide triphosphates containing both deoxyribose and ribose sugars.
B) DNA polymerase can only begin DNA synthesis once the double helix unwinds, whereas RNA polymerase can begin transcription on an intact double helix of DNA.
C) Synthesis of a new strand of DNA by DNA polymerase proceeds in the 5ʹ-to-3ʹ direction, whereas synthesis of mRNA by RNA polymerase proceeds in the 3ʹ-to-5ʹ direction.
D) An RNA polymerase binds to a specific promoter region of the DNA and does not require a primer to initiate transcription, whereas DNA polymerase requires a primer for binding and initiation of DNA synthes
True of false. Transpiration is evaporation of water from on top of the ground to the air.
True. Transpiration is the process of water evaporating from the surface of plants, soil, and other surfaces into the atmosphere.
What is transpiration? Transpiration is the process of water evaporating from the surface of plants, soil, and other surfaces into the atmosphere. It is an important part of the water cycle and plays a role in regulating temperatures and humidity levels in the environment.
Gregor Mendel's principles of inheritance form the cornerstone of modern genetics. So just what are they?
Mendel's three laws summarize the basic concepts of Mendelian inheritance: the Law of Independent Assortment, the Law of Dominance, and the Rule of Segregation.
Gregor Mendel's principles of inheritance are:
The Law of Segregation: This principle states that an individual has two alleles for each trait, which separate during gamete formation. Offspring inherit one allele from each parent.The Law of Independent Assortment: This principle states that different traits are inherited independently of each other. The distribution of alleles for one trait does not influence the distribution of alleles for another trait.The Law of Dominance: This principle states that one allele may mask the expression of another allele in the same gene pair.Mendel discovered these principles while working with pea plants in the mid-19th century. His experiments helped lay the foundation for the field of genetics, and his principles are still widely used in modern genetic research.
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Fill the Blank? In some trees and shrubs, competition among seedlings causes individuals to be spaced relatively evenly throughout the habitat. These plants exhibit a___ type of dispersion pattern
In some trees and shrubs, competition among seedlings causes individuals to be spaced relatively evenly throughout the habitat. These plants exhibit a clumped dispersion type of dispersion pattern
The type of dispersion pattern exhibited by some trees and shrubs is called clumped dispersion. Clumped dispersion occurs when seedlings compete with each other for resources, such as sunlight, water, or nutrients, and the resulting competition causes individual plants to be spaced relatively evenly throughout the habitat.
Clumped dispersion is a common pattern found in many plant species and is often the result of environmental factors, such as limited resources and shade. For example, when a tree species is adapted to a shady environment, seedlings may compete for the limited amount of sunlight available. This competition can lead to the seedlings being spaced relatively evenly throughout the habitat.
Clumped dispersion patterns are also seen in plants that spread their seeds by wind or animals. As the seeds disperse, they may become grouped together in certain areas due to the influence of environmental factors, such as wind patterns or the presence of animals. In this case, the clumped dispersion pattern is the result of the movement of the seeds rather than competition between seedlings.
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_____this type of tumor is consider non-cancerous and can be treated with surgery and removal.
Benign type of tumor is consider non-cancerous and can be treated with surgery and removal.
Benign tumor is the mass of cells that divide continuously and forms an aggregate of cells. The characteristics of benign tumor is that it remains confined to its place. It does not move to the whole body and hence does not cause cancer.
Cancer is the disease caused due to rapidly dividing mass of cells. The property of cancerous cells is that they can move to different parts of the body. This property is called metastasis. When the benign tumor gain the property of metastasis, they cause cancer.
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Water cycle
Evaporation.
The continuous movement of water on, above, and below the surface of the Earth is described by the water cycle, also known as the hydrologic cycle. Evaporation, condensation, precipitation, and runoff are just a few of the crucial processes that make up the cycle.
Water vapor is created when heat energy is absorbed during the process of evaporation, which turns water from a liquid to a gas. Although it also happens from the surface of the soil and vegetation, this mostly happens at the surface of bodies of water, such as oceans, lakes, and rivers. Temperature, humidity, wind speed, and the amount of water surface area available for evaporation are just a few of the variables that affect how much water evaporates.
In order to form clouds, water vapor cools as it ascends and eventually condenses into tiny droplets. These clouds have the ability to produce precipitation, such as rain, snow, or hail, which replenishes the water on the Earth's surface. When the water enters rivers, streams, and oceans, the cycle restarts.
Since it helps to distribute water throughout the Earth's atmosphere and regulates the planet's temperature, evaporation is a crucial component of the water cycle. It is also a crucial process in agriculture because it enables plants to absorb water through their roots and transfer it to their leaves for photosynthesis.
Which factors contribute MOST to intraspecific competition?
- predation and parasitism
mutualistic relationships
- a species' rate of reproduction and the carrying capacity of the environment
- a species' fundamental niche and abiotic surroundings
population size
Among the given options, "a species' rate of reproduction and the carrying capacity of the environment" contribute the MOST to intraspecific competition.
What is intraspecific competition?Intraspecific competition is a competition between organisms of the same species for the same resources such as food, water, shelter, and mates. It is a vital component of population regulation and can limit the population size of a particular species.
Among the given options, the factors that contribute MOST to intraspecific competition are the species' rate of reproduction and the carrying capacity of the environment. The carrying capacity is the maximum population size that an environment can sustainably support. If a species' population exceeds the carrying capacity, then it leads to intraspecific competition, which ultimately leads to a decrease in population size. Hence, the carrying capacity of the environment plays a crucial role in intraspecific competition.
Additionally, the rate of reproduction of a species determines how quickly the population grows. If a species has a high reproductive rate, then it leads to overpopulation, resulting in intraspecific competition. Therefore, a species' rate of reproduction and the carrying capacity of the environment contribute the MOST to intraspecific competition.
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which of the following are considered natural sugars? glucose and maltose fruit nectar and honey brown sugar and molasses fructose and lactose
Natural sugars are sugars found in nature, rather than being processed or refined. They can be found in fruits, vegetables, dairy products and grains. Glucose and maltose are naturally occurring sugars found in plants.
Glucose is a simple sugar that is found in many fruits and vegetables, while maltose is a disaccharide found in grains and other starches.
Fruit nectar and honey are naturally occurring sweeteners that come from the nectar of flowers and from the production of honey by bees. They are both considered natural sugars and are often used as a replacement for refined sugar.
Brown sugar and molasses are two types of refined sugar. Brown sugar is a combination of white sugar and molasses, while molasses is a by-product of sugar cane processing. Neither of these are considered natural sugars since they are both heavily processed.
Fructose and lactose are two naturally occurring sugars. Fructose is a simple sugar found in fruits, honey, and some vegetables, while lactose is a sugar found in dairy products. Both are considered natural sugars and are often found together in many foods.
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How might the cilia and mucus secretions in the respiratory epithelium act as a barrier against infection?
The cilia and mucus secretions in the respiratory epithelium act as a barrier against infection by trapping potential pathogens and foreign particles from the air.
Cilia and mucus secretions in the respiratory epithelium act as a barrier against infection in the following ways . The cilia move the mucus along, trapping particles and pathogens that may have entered the body through the nose and mouth. Mucus contains antimicrobial enzymes and immunoglobulins that help fight off infections by breaking down bacteria and viruses. The lining of the respiratory tract is covered with a layer of mucus that helps to protect against bacteria and other harmful substances.
Cilia and mucus secretions in the respiratory epithelium form a primary defence against infection. The respiratory epithelium consists of mucus-secreting cells and ciliated cells that work together to form a barrier to foreign substances. The sticky mucus traps foreign particles and pathogens, while the cilia move the mucus along and out of the body. Therefore, cilia and mucus secretions in the respiratory epithelium act as a barrier against infection by trapping particles and pathogens that may have entered the body through the nose and mouth, and by breaking down bacteria and viruses.
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oyster populations are primarily, if not exclusively, composed of _____.
Oyster populations are primarily, if not exclusively, composed of bivalve mollusks belonging to the family Ostreidae.
Oysters are found in marine and estuarine habitats, typically in shallow coastal waters, and can be both filter feeders and suspension feeders. There are several species of oysters, including the Pacific oyster, the Eastern oyster, and the Olympia oyster, among others.
Oysters are considered an important commercial and recreational resource due to their culinary value, and they also play a significant role in ecosystem functioning by improving water quality and providing habitat for other organisms.
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What passes from parents to offspring?
Parents pass on traits or characteristics, such as eye colour and blood type, to their children through their genes.
This genetic material carries the instructions for the development and functioning of the offspring's body, including physical traits such as eye color, height, and hair type, as well as susceptibility to certain diseases or disorders.
The DNA is passed from the parent's gametes (sperm and egg) to the offspring at the time of fertilization. In addition to genetic information, parents may also pass on environmental factors such as cultural practices, parenting styles, and exposure to toxins or pollutants, which can also influence the development of the offspring.
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an action potential a. occurs when the local potential reaches threshold level. b. is not propagated. c. has no repolarization phase. d. is an example of negative feedback. e. can be of varying strengths depending on strength of the stimulus. occurs when the local potential reaches threshold level
An action potential occurs when the local potential reaches the threshold level. They consist of four phases including depolarization, repolarization, hyperpolarization, and the resting potential. The correct option is a.
An action potential is a brief, all-or-nothing change in the resting potential of a membrane. They are propagated without decreasing in amplitude and are generated in the axon of neurons. There are four phases as mentioned below:
Depolarization is the initial phase of the action potential. It occurs when the membrane potential becomes less negative, usually due to the opening of sodium ion channels. This causes an influx of sodium ions into the cell, making the membrane potential more positive. If depolarization reaches the threshold level, an action potential will be generated. However, if depolarization does not reach the threshold level, no action potential will be generated.
Repolarization is the second phase of the action potential. It occurs when the membrane potential returns to its resting potential, usually due to the opening of potassium ion channels. This causes an efflux of potassium ions out of the cell, making the membrane potential more negative. Repolarization also causes the sodium ion channels to close, preventing further influx of sodium ions into the cell.
Hyperpolarization is the third phase of the action potential. It occurs when the membrane potential becomes more negative than the resting potential. This is due to the continued efflux of potassium ions out of the cell.
The resting potential is the final phase of the action potential. It occurs when the membrane potential returns to its resting state. This phase is maintained by the sodium-potassium pump, which actively transports sodium ions out of the cell and potassium ions into the cell.
Action potentials can be of varying strengths depending on the strength of the stimulus. A stronger stimulus will result in a larger depolarization, which can cause more sodium ion channels to open and more action potentials to be generated. Therefore, the strength of the stimulus can affect the frequency of action potentials generated by a neuron. Thus, the correct option is a.
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what characteristic is true for both rtks and gpcrs?question 3 options:the receptor transmits ions.the receptor binds to intracellular proteins only when activated.when activated, the receptor has enzymatic activity.the receptor undergoes a conformational change on activation.
The characteristic that is true for both RTKs (Receptor Tyrosine Kinases) and GPCRs (G Protein-Coupled Receptors) is that the receptor undergoes a conformational change on activation.
Due to their crucial roles in both health and sickness, G protein-coupled receptors (GPCRs) and receptor tyrosine kinases (RTKs) are two important families of cell surface receptors that are frequently targeted in drug development efforts.
Both types of receptors undergo a structural change upon binding to their respective ligands, which triggers downstream signaling cascades leading to various cellular responses. This conformational change is essential for the receptor to activate intracellular signaling pathways and transmit signals to the cell. However, it is important to note that RTKs transmit signals through phosphorylation events, while GPCRs do so through G protein-mediated signaling.
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which of the following does not respond to cell-mediated immunity? a) intracellular pathogens that reside within host cells b) some cancer cells c) foreign tissue transplants d) pathogens in the cns
Cell-mediated immunity is a critical component of the immune system that helps protect the body from infection. It involves the use of specialized white blood cells, such as T cells and macrophages, to identify and attack foreign microbes and cells.
While this type of immunity can be effective against many pathogens, it does not respond to all threats. Intracellular pathogens that reside within host cells, some cancer cells, and pathogens in the CNS do not respond to cell-mediated immunity.
Foreign tissue transplants also do not respond to cell-mediated immunity. This type of immunity relies on the recognition of foreign antigens, which are molecules expressed on the surface of a cell. Since the antigens expressed on tissue transplants are not recognized as foreign, the immune system does not respond to them. Therefore, cell-mediated immunity is not an effective defense against these types of pathogens and cells.
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Which two statements best describe cell growth?
A.
The number of paramecium cells in a pond decreases after cell division.
B.
The size of a paramecium cell increases as it takes in and uses nutrients.
C.
The number of cells in an animal's body increases because of cell division.
D.
The size of an animal's body increases as its cells grow in size by taking in nutrients.
Option C & D. Cell growth means that a cell gets bigger (gains mass), while cell division means that a mother cell splits into two daughter cells.
Cell division is the process of making more cells, which is what cell proliferation is. So that our bodies can grow and change, they need to make new cells and let old ones die. Cell division is also an important part of healing wounds. If our cells couldn't divide and make new ones, our bodies couldn't make new skin cells to heal a road rash or grow a fingernail back.
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Under the ___________ , species are identified based on their unique habitat requirements.
A. phylogenetic species concept,
B. biological species concept,
C. evolutionary species concept,
D. ecological species concept,
E. general lineage concept.
Under the ecological species concept , species are identified based on their unique habitat requirements that is option D.
Any hypothesis that seeks to classify species is referred to as a species notion. The concept of species has diverse meanings for different scientists, and there has long been debate about it since different disciplines utilise different measures for categorization.
As a result, there are at least 24 distinct species conceptions and several variants in how they are defined. Certain species notions may apply to some groups of creatures but not to others. When determining which species concept is the greatest fit, criteria such as mode of reproduction, phenotypic variation, habitat or ecological niche, and predecessors must all be examined.
The notion of ecological species defines species as a group of creatures that share environmental niches, with distinctions between groups being adaptive behaviours and morphologies in response to resource availability. The notion revolves around ecological competitiveness. Members of the same species are assumed to have similar requirements and are more inclined to compete to meet these needs.
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communities of oribatid soil mites were compared in burned and unburned patches of forest in california cascade range. the graph below shows rank abundance curves for both communities. how abundance distribution of mites changes as a result of a fire? check all that apply.
The differences in the slopes and shapes of the curves to understand how the abundance distribution of oribatid soil mites changes as a result of a fire.
The abundance distribution of mites changes as a result of a fire because:
1. The total number of mites decreases.
2. The abundance of some mites decreases.
3. The diversity of mites decreases.
4. The rank of some mites changes.
5. The composition of the mite community changes.
Thus, the correct option is that the total number of mites decreases, the abundance of some mites decreases, the diversity of mites decreases, the rank of some mites changes, and the composition of the mite community changes.
The question asks about the abundance distribution of oribatid soil mites in burned and unburned patches of forest in the California Cascade Range. Based on the given rank abundance curves for both communities, we can analyze the changes in abundance distribution as a result of a fire.
Step 1: Examine the rank abundance curves for both burned and unburned patches.
Step 2: Compare the slopes and shapes of the curves to determine how the abundance of mites changes between the two conditions.
Step 3: Identify any noticeable shifts in species dominance, evenness, or overall abundance in response to the fire.
However, in general, you should look for differences in the slopes and shapes of the curves to understand how the abundance distribution of oribatid soil mites changes as a result of a fire.
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which of the following is a chemically defined medium? a. nutrient agar b. nutrient broth c. potato glucose agar d. glucose-minimal salt broth
Of the given option, a chemically defined medium is the glucose-minimal salt broth. The correct answer is d. glucose-minimal salt broth.
A chemically defined medium is a growth medium whose exact chemical composition is known and can be precisely formulated. This type of medium is commonly used in microbiology research to study specific metabolic processes or to select for specific types of microorganisms.
Nutrient agar and nutrient broth are both examples of complex media, which contain a variety of undefined components such as peptones, meat extracts, and other nutrients that can vary in composition from batch to batch. These media are commonly used for general-purpose culturing of microorganisms but do not have a precisely defined chemical composition.
Potato glucose agar is a complex medium that contains potato extract, which also makes it undefined. It is commonly used for the isolation and cultivation of fungi.
Glucose-minimal salt broth, on the other hand, is a chemically defined medium that contains a precise mixture of inorganic salts, glucose, and other nutrients. It is used to grow bacteria that require a minimal set of nutrients for growth and is often used in research to study bacterial metabolism and physiology.
Hence, the correct option is d. glucose-minimal salt broth
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what is a common effect of tobacco on an unborn baby? responses abnormally small head abnormally small head flattened nose flattened nose reduced blood oxygen levels reduced blood oxygen levels small eye sockets small eye sockets
The common effect of tobacco on an unborn baby is: It can reduce the blood oxygen levels of the baby.
This condition is called hypoxia, which means a lack of oxygen supply to the developing fetus.
Smoking tobacco during pregnancy can cause significant harm to both the mother and the developing baby in the womb. Nicotine and other toxins present in tobacco smoke can affect the baby's development in the womb, leading to various complications, including low birth weight, preterm birth, stillbirth, sudden infant death syndrome (SIDS), and other health problems.
Tobacco smoke contains several harmful chemicals that enter the mother's bloodstream and reach the baby through the placenta. These chemicals can damage the developing organs, tissues, and cells, leading to various complications and abnormalities in the baby. For instance, if the baby doesn't get enough oxygen, it can result in reduced growth, abnormal brain development, and other problems.
Smoking tobacco during pregnancy can cause several complications, including: Low birth weight, Preterm birth, Miscarriage, Sudden infant death syndrome (SIDS), Developmental delays and learning difficulties, Respiratory problems, such as asthma and bronchitis, Heart defects and abnormalities
In conclusion, smoking tobacco during pregnancy is a significant risk factor that can lead to various complications and health problems in the developing fetus. Therefore, it is essential to quit smoking and avoid exposure to secondhand smoke during pregnancy to protect the health and well-being of the baby.
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the concentric rings on the shells of mollusks are referred to as growth rings. which part of the shell do you suppose forms first?
As your clam grew, it added shell to this base, which is the oldest part of the shell; the concentric lines ("growth rings") reflect successive.
What do mollusc growth lines look like?Growth lines, which can be observed on the surface of accretion (when present) or in sections cut through growth layers inside the skeleton, can be thought of as creating the borders of growth layers.
Are there development rings in shells?Clam shells have annual growth rings that serve as a record of changes in the marine environment over the course of an animal's life. In order to conduct historical and contemporary climate studies, this specimen maintains 32 years' worth of water temperature data from the eastern Gulf Coast.
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Identify all the statements that are true regarding the main theory of primate social behavior.
True Regarding Primate Social Behavior:
- Primate social behavior is influenced by evolution.
- Genes of individuals who engage in behaviors favored by natural selection are passed from one generation to the next.
Not True Regarding Primate Social Behavior:
- Social behaviors that enhance reproductive fitness are generally natural instincts rather than learned.
- Behaviors that only enhance survival are favored by natural selection.
Several nonhuman primates, like humans, also live in large groups and exhibit social-behavior patterns such grooming, imitative and cooperative foraging. Option 1, 2 are true and 3,4 are false.
This is specialized affiliative relationships, ritualized courting and mating behavior, and competitive interactions governed by social dominance. Sex-related factors are assumed to have an impact on inter-individual interactions, which can happen (1) between females and (2) between men.
True with Regards to Primate Social Behavior: 1. Evolution has an impact on primate social behavior.
2. Those that exhibit behaviors favored by natural selection pass on their genes to succeeding generations.
False About the Social Behavior of Primates:
3. Social skills that improve reproductive fitness are often learnt rather than innate.
4. Natural selection favors actions that only increase chances of surviving.
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Correct Question:
Identify all the statements that are true regarding the main theory of primate social behavior. Options:
1. Primate social behavior is influenced by evolution.
2. Genes of individuals who engage in behaviors favored by natural selection are passed from one generation to the next.
3. Social behaviors that enhance reproductive fitness are generally natural instincts rather than learned.
4. Behaviors that only enhance survival are favored by natural selection.
the fluid-filled interior of a chloroplast is called
The fluid-filled interior of a chloroplast is called the stroma. A chloroplast is an organelle that is found in photosynthetic eukaryotic cells, for example, plant cells and algal cells.
Chloroplasts contain pigments that absorb light energy, which is used to carry out photosynthesis. The stroma is a colorless, gelatinous matrix that surrounds the thylakoid membrane. It comprises the majority of the chloroplast's volume and is where the Calvin cycle occurs.
The stroma has ribosomes, circular DNA molecules, and enzymes. The chloroplasts are the site of photosynthesis in plant cells. It has pigments that absorb light energy, which is then used to carry out photosynthesis. Chloroplasts have several functions. They are as follows: They provide energy to the plants. They store food for the plants. They produce oxygen for the plants.
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which of the following does not belong with the others? group of answer choices cephalosporin penicillin monobactam streptomycin bacitracin
Streptomycin does not belong with the others as it is not an antibiotic that belongs to the beta-lactam class, unlike the other antibiotics listed.
Cephalosporin, penicillin, and monobactam are all beta-lactam antibiotics, which have a similar chemical structure and mode of action. Bacitracin is a non-beta-lactam antibiotic that works by disrupting bacterial cell wall synthesis.
Streptomycin, on the other hand, is an aminoglycoside antibiotic that works by inhibiting bacterial protein synthesis. It is not structurally or functionally related to beta-lactam antibiotics.
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How is polyploidy different than the mutation of one or two genes, such as those that gave rise to cauliflower?
Because a variation in one of two genes does not affect the entire set of chromosomes as in polyploidy, it differs from mutations inside one or two genes. In a variety of seemingly shapes, broccoli, cabbage, and kale.
Are there more then two copies of the each gene in a polyploid plant?Polyploids involve three or even more copies of the each chromosome. In contrast, only two copies of the each chromosome are present in diploid creatures, such as humans.
What are the various polyploidy kinds and how are they defined?These numbers are divisors of seven. As a result, species that really are diploid, compression moulding, tetraploid, pentaploid, hexaploid, and octaploid are produced by the fundamental monoploid number 7. These are all referred to as polyploids, with the exception of diploids. Tetraploids are the most common ploidy level found in natural populations.
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what is the main differences in the influence of genes versus environment on the expression of discrete versus continuous traits
The main differences in the influence of genes versus environment on the expression of discrete versus continuous traits are as follows: Genes and environment have a significant effect on the expression of both continuous and discrete traits.
The genetic and environmental factors that impact continuous and discrete traits are different in various ways. Genes have a greater effect on the expression of discrete traits, whereas the environment has a greater effect on the expression of continuous traits.
Discrete traits are determined by one or two genes, and the environment has little influence on them. Continuous traits, on the other hand, are influenced by a variety of genes as well as environmental factors. Environmental effects are more important for continuous traits than they are for discrete traits.
Continuous traits are heavily influenced by environmental factors, while discrete traits are not influenced by them to the same extent. The environment has a major effect on the expression of height, weight, and blood pressure, which are examples of continuous traits.
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what enzymes catalyze the addition of amino acids to trna molecules? multiple choice question. aminoacyl-trna synthetases atp synthases rna polymerases
The enzymes catalyze the addition of amino acids to trna molecule is a. Aminoacyl-tRNA synthetases
Aminoacyl-tRNA synthetases are specific for each amino acid and each tRNA. There are twenty different aminoacyl-tRNA synthetases, one for each amino acid. Enzymes like this one are crucial for the accuracy of protein synthesis. ATP synthases catalyze the synthesis of ATP from ADP and phosphate ions. They are located in the inner mitochondrial membrane and in bacterial cell membranes.
ATP is used by cells as an energy source and ATP synthases are also called ATPases because they can also work in the opposite direction, hydrolyzing ATP to ADP. RNA polymerases catalyze the synthesis of RNA from DNA. They are responsible for transcription, the process of creating an RNA copy of a gene or a group of genes. RNA polymerases bind to DNA at the beginning of a gene and make a complementary RNA copy by adding nucleotides one at a time. RNA polymerases are not involved in the synthesis of amino acids, tRNAs or proteins.
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3. What is the function of the epiglottis?
creates sound
controls swallowing
makes air go into the windpipe
covers the windpipe when swallowing
Covers the windpipe when swallowing.
The epiglottis is usually upright at rest, allowing air to pass into the larynx and lungs. When a person swallows, the epiglottis folds backward to cover the entrance of the larynx so food and liquid do not enter the windpipe and lungs. After swallowing, the epiglottis returns to its original upright position.