Genes regulate protein synthesis by
A) coding for the arrangement of ribosomes on DNA molecules.
B) specifying which amino acids will be joined together, and in what order.
C) regulating the influx of ions like sodium and potassium, which code for proteins.
D) setting the cell's biological clock and controlling how and when a cell divides.

Question

Quizplus · Accepted Answer

Genes are responsible for providing instructions for making proteins. These instructions are encoded in DNA by a sequence of nucleotides. This sequence is then transcribed into mRNA, which is then translated into a chain of amino acids that will ultimately fold into a functional protein. Genes specify which amino acids will be joined together, and in what order, by providing the code for the sequence of nucleotides in mRNA. Therefore, option B is the correct answer.

Genes Regulate Protein Synthesis by