Proteins are important architectural and catalytic components within the cell, helping to determine its chemistry, its shape, an

Question

3 years ago

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Proteins are important architectural and catalytic components within the cell, helping to determine its chemistry, its shape, an

d its ability to respond to changes in the environment. Remarkably, all of the different proteins in a cell are made from the same 20 __________. By linking them in different sequences, the cell can make protein molecules with different conformations and surface chemistries, and therefore different functions. A) Nucleotides B) Sugars C) Amino Acids D) Fatty Acids Front Which statement is NOT true about mutations? A) A mutation is a change in the DNA that can generate offspring less fit for survival than their parents. B) A mutation can be a result of imperfect DNA duplication. C) A mutation is a result of sexual reproduction. D) A mutation is a change in the DNA that can generate offspring that are as fit for survival as their parents are. Front Changes in DNA sequence from one generation to the next may result in offspring that are altered in fitness compared with their parents. The process of change and selection over the course of many generations is the basis of __________.

Chemistry

1 answer:

ss7ja [257] · Answer 1 · 2022-04-25T04:04:33+03:00

Answer:

1) Amino acids

2) option C is false

3) evolution

Explanation:

Remarkably, all of the different proteins in a cell are made from the same 20 amino acids

⇒ proteins are made of a combination of amino acids. The amino acids get conected by petide bonds.

A) A mutation is a change in the DNA that can generate offspring less fit for survival than their parents. This is true, changes in DNA of the parents can cause the deviations/ defects for the next generation i.e. daltonism where the mother is a carrier but hasn't a disadvantage, and the son is also a carrier but he does have disadvantages.

B) A mutation can be a result of imperfect DNA duplication.This is true, i.e hereditary cancer.

C) A mutation is a result of sexual reproduction. This is FALSE. A mutation is the result of a defect in the reproduction. It's an abnormal situation.

D) A mutation is a change in the DNA that can generate offspring that are as fit for survival as their parents are. This is true. Not all mutations give defects, but can also create advantages !

Option C "A mutation is a result of sexual reproduction" is false.

The process of change and selection over the course of many generations is the basis of evolution.

⇒Evolution exists because of the changes that happen in the body and generations.