Question

Please briefly explain if possible​

Answer 1

nope, she’s right! it’s the first choice :) there are 20 amino acids and the sequences vary, it creates variety!! for instance, a protein sequence could be lysine, serine, stop while another protein could be in a different sequence such as glycine, lysine, proline, isoleucine. all these different sequences create great variety within the proteins!! so therefore, it is choice A.

Answer 2

Sequence and number of amino acids can be different in each protein

Explanation: this is because there is 64 combinations from a codon in order to create one amino acid. Meaning each codon will most likely be different from the others. To build a protein it takes a long chain of amino acids so with different amino acids being created in one strand of dna it creates different proteins.