In what phase of mitosis do the chromosomes line up along the equator of the cell ?

Biology

1 answer:

kap26 [50]2 years ago

4 0

It occurs at the metaphase of the cell division cycle.

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Why does synthetically produced RNase refold incorrectly if the reducing agent is removed before urea removal?

olya-2409 [2.1K]

<h2>Disulfide bonds interaction </h2>

Explanation:

The high concentration of urea causes unfolding of protein and thus results in loss of function of a protein. The urea interacts with the protein and prevents the folding of a protein.
During oxidation, the disulfide bonds that are required for proper functioning and stabilization of protein are formed, while in the presence of urea, the disulfide bonds are not positioned correctly. The protein oxidation results in covalent modification of a protein that results in the change of physical and chemical properties of a protein.
The change of physical and chemical properties of protein after oxidation and in the presence of urea cannot be modified even after the removal of urea. Thus, protein does not fold properly.
Hence the right answer is "disulfide bonds are not positioned correctly rather than week bonding interaction"

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Answer:

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Explanation:

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Hope this helps!

-Payshence

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There is no answer that is right except for C. Natural Selection.

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Mutation could be the answer, but since mutations are too rare to really power Evolution, the only logical answer is Natural Selection.

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