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Vera_Pavlovna [14]
3 years ago
10

George Beadle and Edward Tatum used mutant strains of Neurospora to formulate the one-gene-one-enzyme hypothesis. Researchers la

ter updated this hypothesis to propose that one gene encodes one polypeptide because proteins can have multiple subunits. Consider a heterodimeric protein. How many genes are required to form this protein?
(A) two
(B) four
(C) six
(D) three
(E) one
Biology
1 answer:
Anton [14]3 years ago
6 0

Answer:

(A) two

Explanation:

A heterodimeric protein consists of two polypeptides (a polypeptide is a  chain of amino acids) that differ in amino acid composition, number or order in the chain sequence. Each polypeptide makes a different subunit of the protein.

One gene encodes one polypeptide, so if the protein has two different polypeptides, two genes are required to form this protein.

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