Answer:
the answer is D which is CJD
Proteins. <span>The amino acids in a polypeptide chain are linked by peptide bonds. Once linked in the </span>protein<span> chain, an individual amino acid is called a residue, and the linked series of carbon, nitrogen, and oxygen atoms are known as the main chain or </span>protein<span> backbone.</span>
The best answer I see is A
please tell me if I´m right
sorry if i am not
I think the cytoskeletal protein that helps a cell maintain its shape is actin.
