please answer it
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Answers
Answer:
option D is the answer
Explanation:
mark me brainly
Answer:
option a. One is true 2 is false
1) how sequence of the amino acids in a protein (primary structure) gives identity and characteristics to a protein
2) how local interactions between one part of the polypeptide backbone and another affect protein shape (secondary structure)
3) how the polypeptide chain of a protein can fold to allow amino acids to interact with each other that are not close in primary structure (tertiary and 4) how different polypeptide chains interact with each other within a multi-subunit protein (quaternary structure).
A hemoglobin molecule is made up of four polypeptide chains, two alpha chains of 141 amino acid residues each and two beta chains of 146 amino acid residues each. In the complete molecule, four subunits are closely joined