Question

a gene is a section of a(n) ______ molecule.
a dna
b protein
c rna
d small
e amino acid

Explanation:

Genes are segments of DNA that contain the instructions for building and maintaining an organism. DNA is the molecule that stores genetic information. Proteins are made from the instructions in genes, RNA is involved in the process of gene - expression but genes are not parts of RNA in the primary sense. Amino acids are the building blocks of proteins. "Small" is not a relevant molecule type here.

Answer:

A. DNA