How are genes used by cells to build proteins?
A) The genes in DNA direct the synthesis of an RNA molecule, which is used to build a protein.
B) The genes in RNA direct the synthesis of a DNA molecule, which is used to build a protein.
C) DNA is transcribed into an amino acid sequence.
D) The genes in RNA direct the synthesis of proteins directly.

Question

Quizplus · Accepted Answer

Genes in DNA are transcribed into RNA molecules, which then serve as templates for the synthesis of proteins. Specifically, the sequence of nucleotides in the RNA molecule is read and used to determine the sequence of amino acids in the protein. This process is known as translation. Therefore, option A is the correct choice. Option B is incorrect because RNA does not serve as a template for DNA synthesis. Option C is partially correct but does not provide a complete explanation. Option D is incorrect because RNA cannot synthesize proteins directly; rather, it serves as a template for protein synthesis.

How Are Genes Used by Cells to Build Proteins