In a human population of 1000 ,840 are tongue rollers and 160 are not tongue rollers .What is the frequency of the dominant allele

Answers

Answer 1

Answer:

0.6

Explanation:


Related Questions

Which of the following would not be facilitated diffusion?
A: A water molecule passes through a semi permeable membrane
B: A large glucose molecule enters the cell through a pore protein
C: An amino acid exit the cell through an integral protein
D: A chlorine ion (CI-) unlocks a protein channel, and passes through

Answers

Answer:

A. A water molecule passes through a semi permeable membrane

Explanation:

Facilitated diffusion is the diffusion of a molecule without any assistance from a protein or protein channel.

In facilitated diffusion, a molecule will diffuse by itself through a semi permeable membrane, such as the cell membrane.

Answer choices B, C, and D are incorrect because they are all examples of facilitated diffusion. The molecules required assistance from a protein.

Answer choice A is correct because the water molecule was able to pass through by itself.

So, the correct answer is A. A water molecule passes through a semi permeable membrane

During Anaerobic respiration:
A. glucose is converted into Lactic Acid.
B. glucose is converted into ATP.
C. ATP is converted into Lactic Acid.
D. glucose is not used as the energy source, since there is no oxygen.

Answers

The answer is A as during anaerobic respiration, as there is no oxygen, glucose is converted into ethanol and lactic acid to produce some energy.

During the process of anaerobic respiration, glucose is converted to lactic acid in the absence of oxygen. So the correct option is A.

What is anaerobic respiration?

The type of respiration in which the sugars are broken down in the absence of oxygen. Here the final electron acceptor is not oxygen. The organisms that perform anaerobic respiration have evolved to use other substances as their electron acceptors.

Aerobic respiration happens in presence of oxygen. In both of these types of respiration, glucose is broken down into pyruvate and then it enters a series of reactions using an electron transport chain to produce ATP. This is where they require a final electron acceptor which can be oxygen, nitrate or sulfates etc.

The process of breakdown of glucose is called glycolysis. and after that two pyruvate molecules are produced. In anaerobic respiration, these molecules undergo reactions in the cytoplasm to produce ATP with the help of sulphur, sulfates, nitrates, fumarates etc as the final electron acceptor.

Anaerobic respiration produces less ATP compared to aerobic repiration.

Read more about Anaerobic respiration, here

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Thoroughbreds are an example of a type of horse that results from selective breeding. However, not all thoroughbreds have the traits that are most desired. How is it possible to breed thoroughbreds but not have a horse with desired traits such as a fast runner?

Answers

In selective breeding, when crossing individuals that express the desired phenotype but are heter0zygous for this character, their offspring might express the undesired trait.  

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The main goal of selective breeding is to get individuals -plants or animals- with the desired traits. These traits make them better, according to the breeder's interest. The interest is to produce individuals with the same reproductive capability, adaptability, capacity, and general phenotype as the original pure line.

To get a generation of individuals expressing the desired traits, the breeder must select parents that have the characteristics of interest. Many or some animals of the progeny might inherit the desirable phenotype.

In general, pure and almost identical animals with the desired traits are produced after many generations of inbreeding. These are the pure-bred individuals and are the product of many selective crosses.

Pure-bred (true-bred) animals are h0m0zyg0us dominant or recessive for the desirable traits. The progeny of the same line express similar phenotype and performance to the ones of their progenitors.

Many problems are associated with selective breeding and the production of pure lines.

In the exposed example, let us say that the desired trait is running speed and that there is only one autosomal gene that codes for run speed.

the dominant allele F expresses the trait fast runnerthe recessive allele f does not express the trait fast runner

So, FF and Ff individuals will be able to run fast, while ff individuals will not.

Probably the breeder does not know the genotype of the animals, so this person crosses the horses according to how fast they run -phenotype-. If the breeder wants to get fast runner animals, he/she will only choose horses with this trait, which might be either FF or Ff.

If the breeder chooses two heter0zyg0us individuals, there are 75% of getting horses with the desired trait and 25% of chances to get horses with the undesired trait -h0m0zyg0us recessive genotype ff-.    

The breeder needs many generations of inbreeding to get only horses that are fast runners.

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What cell parts are common to all of these cells?

Use complete sentences.

Answers

Answer:

between an animal cell and a plant cell there are some parts that are similar and carry out the same function like:

both have a cell membrane which selects what goes in the cell.

both have cytoplasm which holds the protoplasm(the living part of the cell)

both have a nucleus which carries out all cell activities and holds threads of DNA called chromosomes

both have a mitochondria which is the power house of the cell

both have golgi bodies which modify and carry proteins from sites of synthesis to sites of reaction

I hope this helps

5-7 sentences that describe the life cycle of a star

Answers

Answer:

The accurate existence of a star depends extremely on its size.

Explanation:

The mass decides the life cycle of a star whereas the central sequence star shines, hydrogen in its core is turned into helium by nuclear fusion. Meanwhile, the hydrogen supply in the core begins to run out, and the star is no longer producing heat by nuclear fusion, the core enhances unstable and contracts.The stars are grown in clouds of vapor and dust which are identified as Nebulae. The nuclear reactions toward the center of stars produce sufficient energy to get them to shine brightly for several years. Sun is the nearest star to the earth. Numerous stars are visible to the bared eye from Earth through the night, resembling twinkling dots due to their enormous distance from the Earth.

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Proteins are one of the four main
types of
biomolecules
O living
O complex

Answers

I would have to go with O complex.

Is milk production a quantitative trait? explain your answer​

Answers

Answer: Yes, the milk produced is measured in number form thus making it quantitative.

Please mark brainliest

The variable in a scientific experiment that is manipulated by
the researcher to investigate its effect on another variable
called the dependent variable is known as the

Answers

i found this. it's says the independent variable

Which answer below is in correct order from smallest (-) to largest (+)

Answers

Answer:

the 2nd answer

Explanation:

If a red fox, sage shrub, fence lizard, and grasshopper were arranged which one has the least amount of energy

Answers

Sage shrub (I'm so sorry if it's wrong)

Explanation:

Sage shrub >>> grasshopper>>>fence lizard>>>red fox

Neon is a colorless gas that is not known to reach with any other substance. Which other element is most likely to be a nonreactive gas?
A. Xe, number 54
B. F, number 9
C. Cs, number 55
D. Na number 11

Answers

Xenon is a noble gas. As it has a full valence (outer) shell, it is usually inert (unreactive)

can someone plz help me

Answers

the answer is internal membranes

Definition: Any living thing with one or more cells.
Example: You
Term?

Answers

Answer:

multicellular organism

Explanation:

a person blinks his eye.why?How is this kind of response different from salivation at sight of delicious food.​

Answers

Answer:

i dont know

Explanation:

What are the homeostatic pressures an axolotl goes through and how do
they deal with that?

Answers

Here is a link to understand the whole concept, of the homeostatic pressures on axolotl: https://www.sciencedirect.com/science/article/pii/S0301008217302113

How does deforestation contribute to climate change?
O A. Fewer trees are available to fossilize into petroleum.
O B. Fewer trees are available to absorb greenhouse gases.
C. Tree loss reduces the land's albedo.
O D. Tree loss increases the effect of volcanic eruptions.

Answers

B is correct since trees absorb CO2.

Hello may anyone help me with this? youd be such a life saver :)

Answers

Answer:

Show the picture better for people to see

Explanation:

Social issues that could lead to environmental injustices?​

Answers

Answer: can you exsplain you question a little better i will edit my answer when you do.

Explanation:

What properties of carbon explain carbon's ability to form different large and complex structures?

Answers

The properties that allow this are the carbon's four valence electrons, and the fact that they can bond with other carbon atoms.

describe the human population growth curve over the past 10,000 years, and identify the type of population growth curve it represents


p.s I will give brainless

Answers

Explanation:

Global human population growth is around 75 million annually, or 1.1% per year. The global population has grown from 1 billion in 1800 to 7 billion in 2012.

Although the direst consequences of human population growth have not yet been realized, exponential growth cannot continue indefinitely.

In the late 1970s, China’s “one-child” policy tried to control population growth, but restrictions were relaxed in the early 2000s.

You are building a birdhouse when you cut your finger. Predict which body systems would be immediately involved with your reaction to the cut.

Answers

I think it is the immune system I'm not sure

Which tree harvesting method removes whole trees in rows in several cuttings over several years?
seed-tree cutting
shelterwood cutting
strip logging
whole-tree harvesting

Answers

Answer:

shelter wood cutting is the answer

Explanation:

hope it may help you

bacteria are advantageous as well as disadvantageous. why​

Answers

Answer:

ADVANTAGES:

Bacteria are involved in production of many food products such as yogurt, cheese, pickles, etc.

Bacteria break down waste material so that our environment is not permanently cluttered with garbage, dead bodies, etc.

Bacteria are responsible for the production of important essential compounds that are necessary for life such as vitamin K production by E. coli in the gut

DISADVANTAGES:

Some bacteria cause infections or produce toxic substances that are a threat to life and/or health.

Bacteria cause spoiling of food so that it does not keep as long as we may desire.

Some bacteria may cause infections of plants, threatening our food supply or ornamental plant.

How does an mRNA strand reach the site for Translation?
A. It moves across the membrane through Active Transport
B. It exits the Nucleus through a Nuclear Pore
C. It is already where it needs to be, Translation occurs as soon as the mRNA is processed
D. A tRNA molecule carries it to the Ribosome

Answers

The strand of mRNA passes from the A to the P sites of the ribosome before exiting at the E site. At the A site, tRNA molecules connect to the codons of mRNA before moving to the P site, where their amino acid is added to the growing polypeptide chain.

The correct answer is B: it exits the nucleus through a nuclear pore.

How are disaccharides formed?

Answers

Person above me seems smart

¿De qué forma se puede aprovechar los fenómenos naturales para solucionar los problemas de alimentación?

Answers

no tiene sentido la pregunta, supongo que tiene pros y contras pero los problemas no se solucionan con más problemas

who had discovered cell and in which year​

Answers

Answer:

Robert Hooke discovered cell in 1665.

Can anyone help
Me if y’all know this?

Answers

Answer:

62 dg = 0.62 dag

72,448 mm = 72.448 m

0.641 L = 641 mL

10,000 cm = 0.1 km

0.998 dL = 0.0998 daL

78,548 m = 78,548,000 mm

45 hg = 4500000 mg

97,123,582 mm = 97.123582 km

0.00741 kL = 7,410 mL

745 g = 74,500 cg

25 mm = 2.5 cm

0.005741 kL = 574,100,000 cL

what is enzymes?? give two examples ​

Answers

Amylase – helps change starches into sugars. ... Maltase – also found in saliva; breaks the sugar maltose into glucose. Maltose is found in foods such as potatoes, pasta, and beer. Trypsin – found in the small intestine, breaks proteins down into amino acids.

Which organisms feed on host organisms, causing them harm
A. herbivores
B. parasites
C.carnivores
D.omnivores

Answers

Answer: C. Parasites

An example of this would be a Flea or Tick feeding on a cat- the host.
parasites, i jst took a test on this.
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