Elephants have multiple copies of the p53 genes that play an important role in the control of cell division.
<h3>What is the role of p53 genes in elephants?</h3>
P53 is an important regulator of the DNA repair processes and controls uncontrolled cell proliferation. When DNA is harmed, the protein becomes active and aids in orchestrating a response that stops DNA replication and fixes any incorrect copies of the cell. The oncogene MDM2 E3 ubiquitin ligase, another protein, is responsible for deactivating the p53 repair activity in duplicated cells with intact DNA since it is not required.
A human with only two alleles from a single gene has much fewer molecular anti-cancer interactions than an elephant, which has 40 alleles, or versions, from its twenty p53 genes. Although the elephant may appear to have excessive genetic diversity, each of its 40 alleles is structurally slightly different.
I understand the question you are looking for is this:
Compared to humans, elephants have a dramatically low instance of cancer. Elephants have multiple copies of the _____ genes that play an important role in the control of cell division.
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D, since it is semi-permeable then it will be able to control what enters and leaves.The cell membrane is a bi-layer its outer surface is hydrophilic and inner surface is hydrophbic so the substances that pass through it have to be sufficiently hydrophobic and hydrophilic in order to pass it and it also has small openings in it which allows the free exchange
Answer:
<u>Major limitation of Jorge's experiment are -:</u>
- Vast amounts of data can be obtained.
- He does not prove definitively that a person is taller because of vitamins.
- No association between vitamins and height can be seen.
Explanation:
<u>ABOUT VITAMINS -:</u>
A vitamin is an organic molecule that is an important micronutrient that an organism requires in limited amounts for the proper functioning of its metabolism (or a chemically closely connected group of molecules, i.e. vitamins). In the body, basic nutrients can not be synthesized in adequate amounts, either at all or not, and must therefore be ingested via a diet.
Hence, the major limitations of the experiment are mentioned above.
Answer: Since menopause, Sarah's levels of the hormone estrogen have dropped.
Explanation:
The most likely cause of injury in the following scenario is that because of the menopause, Sarah's levels of the hormone estrogen, which is also known as a female hormone, have dropped and because of that she is playing ice hockey with others and since she did not play it before, she broke her elbow.
She broke it because she was inexperienced with it and if she has played it before menopause she could not break it.
Answer:
Definitely A. mililiter, centimeter, gram
