Answer:
d. All of the above
Explanation: Is the correct answer!! and post protected
You are attempting to carry out a transposon mutagenesis experiment using the pRL27 system. The Donor strain you use was giving to you by a lab mate who has been culturing it continuously for several months. When you set up your control plates, you find that the Donor strain grows poorly on Luria DAP Agar. Your transformation efficiency is very poor for this attempt at mutageneis. What likely happened to the Donor strain
The most likely happened to the donor strain is that the transposon is active in the donor resulting in the gradual accumulation of mutations. The accumulation of mutations is promoted by the insertion of the transposon.
A donor strain is a bacterial strain that contains a mobilizable fragment of DNA called plasmid.
These strains (donor strains) exploit the transference properties of a conjugative plasmid to modify a particular recipient strain.
Transposons, also known as jumping genes, are mobile genetic elements that alter the genome of an organism by jumping and thus inserting them into genetic sequences (i.e., into protein-coding sequences).
In this case, the presence of a transposon in the donor strain affected the expression of many genes required for the donor strain in order to grow into Luria DAP Agar.
Learn more in:
https://brainly.com/question/9791466
Someone who needs to import wildlife species for scientific research would need to consult the _____ to determine the regulations on moving that species across international borders.
The individual should approach the U.S. Fish and Wildlife Service’s International Affairs Program, in other to determine the regulations on moving that species internationally.
This program through coordinated efforts; protect, restore, and enhance the world’s diverse wildlife resources both domestically and internationally but with a greater focus on international species.
There are different categories of wildlife species based on their abundance and distribution. Some are regarded as foreign endangered and threatened species. And the need to protect these species is priceless.
That's why the import/export of these scarce species is regulated and restricted by laws and legislation.
For whatsoever reason, the U.S. Fish and Wildlife Service’s International Affairs Program should be consulted to determine the movement of these species.
Learn more: https://brainly.com/question/12113665?referrer=searchResults
PLS HELP QUICK
A closed, rigid container with a given mass of helium gas is heated until the temperature is doubled.
Which of the following statements is TRUE?
A
The pressure of the gas is halved, because temperature and pressure is inversely related
B
The pressure of the gas also doubles, because temperature and pressure are directly related
C
The pressure of the gas is unchanged, because helium gas is lighter than the air outside the container.
D
The pressure of the gas is unchanged, because there is no relationship between temperature and pressure.
Answer:
i think the answer is B
Explanation:
how can we improve hydraulicity of lime?
Answer:
Hydraulicity and setting properties of fat lime can be improved by the addition of surkhi and grinding the mixture in a mortar-mill.
Explanation:
True or false?:
A small earthquake, called a foreshock, can occur seconds to weeks before a large
earthquake.
Answer:
false
Explanation:
aftershock, a smaller earthquake that occurs after a previous large earthquake, in the same area of the main shock.
Answer:
The answer is Actually True!
Explanation:
Sometimes, clusters of small earthquakes called foreshock sequences come in the days or weeks before a large earthquake. Less often, seismologists have observed a process called nucleation, where the rate of slip along a fault ramps up gradually before an earthquake. Hope this helps!!!
gene expression is determined by several factors, including
Hi! Thanks for asking your question here on Brainly!
Answer:
Chemicals in the body of a living organism is one of the many factors determined in gene expression.
Explanation:
The presence of drugs and/or chemicals in a living organism's environment, this can also influence gene expression in the organism.
Hope this helps :D Happy Holidays!
Expressivity can be impacted by a number of elements, such as genetic make-up, exposure to dangerous chemical substances, other environmental effects, and age.
What are the factors that affect gene expression?The level of transcription is where the majority of control over gene expression is exerted, and this is mostly due to the fact that proteins bind to certain locations on DNA.
It is possible for environmental elements such as nutrition, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens to have an effect on which of an animal's genes are expressed, which in turn has an effect on the animal's phenotype.
Learn more about gene expression, here:
https://brainly.com/question/15159232
#SPJ2
Where does the light reaction of photosynthesis take place
Answer:
Takes place in the thylakoids.
A stack of thylakoids is the granum.
Answer:
Light reaction takes place in the thylakoid discs.
these tiny blood vessels transport absorbed nutrients.
Answer:
we called them capilary
Answer:
Capillaries
Explanation:
Capillaries are tiny blood vessels which transport absorbed nutrients, blood, and oxygen to all cells in the human body. They also connect arteries and veins together.
When exponential growth is graphed, the trend line created looks like what letter of the alphabet?
Answer:
Letter J
Explanation:
I learned about this and i vividly remember this fact because it was so random. :)
the group of blood disorders in which blood oxygen levels are inadequate to support normal metabolism is called
Answer:
anemia
Explanation:
the level of red blood cells in the body is lower than normal, which means that the body does not have enough oxygen :)
what is the most dangerous animal in the world 2021
Answer:
mosquitos ...........
How does diffusion occur without any Energy?
Answer:
it moves from a stronger region of concentration to a weaker region of concentration so therefore does not call for or require energy
During subduction oceanic crust is pushed down toward the mantle and _____.
Why do scientisits use light rays to represent light rays
the organ of smell and taste are closely related discuss?
Answer:
They are closely related because the bose and mouth are connexted through the same airway. You taste and smell at the same time.
Please Help Putting These Answers Where They Go !
Answer:
Can you add a list?
Explanation:
if woman can not have children does that mean that she does not have all the property of life and is therefore not alive
When heat is supplied to one end of a long metal rod, then which spreads at once in the entire rod. It is true? If not, justify your answer.
It is true that when heat is supplied to one end of a long metal rod, then which spreads at once in the entire rod.
What is conduction?Conduction is the transfer of heat energy through collisions between neighboring atoms or molecules.
Conduction occurs more easily in solids and liquids because the particles are closer together than in gases because the particles are farther apart.
Good conductors are materials that allow electricity to easily pass through them. Bad conductors are materials that do not allow electricity to easily pass through them.
Most metals are thought to be good electrical current conductors. Copper is just one of the more common materials used in conductors. Silver, gold, and aluminum are other materials that are occasionally used as conductors.
Thus, the given statement is true.
For more details regarding conduction, visit:
https://brainly.com/question/12136944
#SPJ2
PLEASE HELP ME IM TIMED!
Answer:
Its Only, Oxygen, Nitrogen, and ammonia.
Explanation:
Hope that helped.
In eukaryotic mRNA, the parts that remain after processing and are translated into amino acid sequences are called the _____.
Answer:
Exons.
Explanation:
In mRNA maturation and processing, a complex called a splicesome essentially "cuts out", if you will, non-coding parts of the DNA sequence to be translated. The parts that are cut out are called "introns", and the parts that are left over that code for a protein sequence, are called "exons". Careful with the terminology. It seems counterintuitive that exons are the ones that stay (exon = exit? NO.) and introns (in, as in, stays in? NO.) are the ones that are cut out of the mature mRNA. Perhaps you can remember that the terms seem to be the opposite, that's how I remember it. Alright, good luck with all of this.
how does high biodiversity help the stability of an ecosystem?
Answer: See explanation
Explanation: High biodiversity help the ecosystem have better stability becuase if a diease affect a certain type of plant, and the ecosystem has high biodiversity only that species will die and the others will live on. But if it has low bio diversity the organism might die out completely.
what is located in the autonomic nervous system
Answer:
It contains three anatomically distinct divisions: sympathetic, parasympathetic, and enteric.
Explanation:
The sympathetic nervous system (SNS) and the parasympathetic nervous system (PNS) contain both afferent and efferent fibers that provide sensory input and motor output, respectively, to the central nervous system (CNS). Generally, the SNS and PNS motor pathways consist of a two-neuron series: a preganglionic neuron with a cell body in the CNS and a postganglionic neuron with a cell body in the periphery that innervates target tissues. The enteric nervous system (ENS) is an extensive, web-like structure that is capable of function independently of the remainder of the nervous system. It contains over 100 million neurons of over 15 morphologies, greater than the sum of all other peripheral ganglia, and is chiefly responsible for the regulation of digestive processes.
HELP ASAP PLS! just need 1 question:( i don’t understand what it’s asking !:(
Answer:
As the prey population increases, there is more food for predators. So, after a slight lag, the predator population increases as well. As the number of predators increases, more prey are captured.
Explanation:
I NEED HELP IDENTIFYING THE STAGES!!! PLZ HELP!!!
Interphase, Prophase, Metaphase, Anaphase, or Telophase
Answer:
prophase
Explanation:
A network of small arteries called the ___________ provides a blood supply to the tunica externa of very large vessels.
Answer:
vasa vasorum.
Explanation:
New genetic combinations are a result of
a. Nondisjunction
b. Crossing over
c. accidents
d. all of the above
Answer:
Explanation: D
how does a cell get energy from an atp molecule
Answer:
Whenever a cell needs energy, it breaks the beta-gamma phosphate bond to create adenosine diphosphate (ADP) and a free phosphate molecule. Cells get energy in the form of ATP through a process called respiration, a series of chemical reactions oxidizing six-carbon glucose to form carbon dioxide.
Hope that Helps...
explain why you have so many responses to one stimulus
Answer:
When a stimulus is detected by a sensory receptor, it can elicit a reflex via stimulus transduction.
Where does fertilization of an ovum occur?
Answer:
a. In the fallopian tubes
Explanation:is correct. post protected
QUESTION 7
All of the following cells might be a product of meiosis EXCEPT?
OA) an egg
O B) a liver cell
OC) a spore
OD) a sperm cell
E) a gamete
Answer:
B) Liver Cell
Explanation:
An egg and a sperm cell are reproductive cells that are products of meiosis
A spore is produced by meiosis in the sporophyte
A gamete is produced through meiosis