Structural genes are: group of answer choices a) genes of which the first products are mrnas b) genes encoding polypeptides that have three-dimensional structures c) genes that have specific dna structures genes that make molecules of cellular structures

c) genes that have specific DNA structures genes that make molecules of cellular structures.

Explanation:

The structural genes are the form of genes that encode for proteins in the body that are required for performing specialized function in the body of the organism. The proteins are the building blocks of the cells. These genes encodes for the amino acid sequence for the synthesis of protein. These proteins create a physical structure inside the cells of the organism such as cytoskeleton, which gives the cells it's shape.

the match duh

explanation:

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.