Question

One gene controls the synthesis of one _____.

peptide
polypeptide
DNA molecule

Answer 1

One gene controls the synthesis of one polypeptide.

Step-by-step explanation:

The concept of one gene-one enzyme was given by Beadle and Tatum. This concept states that a gene codes only for a single enzyme. The enzyme affects the metabolic pathway of the reaction.

The enzymes are the proteins which performs a metabolic function. The protein is made up of amino acids. The amino acids are joined together to form a linear chain. This linear chain is also called as a polypeptide.

Answer 2

I think the correct answer from the choices listed above is the second option. One gene controls the synthesis of one polypeptide. There is a hypothesis about this question and it states that the actual function of genes in all species is to control the synthesis of polypeptides who then affect a metabolic pathway.