Question

Identify which of the following statements concerning genes are true. (Select all that apply.)

A) Genes are composed of DNA.
B) Genes always code for proteins.
C) Mutations can occur in genes.
D) All genes have the same function.

Answer 1

Genes are composed of DNA and can undergo mutations. Not all genes code for proteins, and genes have different functions.

Step-by-step explanation:

Statements concerning genes that are true:

1. Genes are composed of DNA.
2. Mutations can occur in genes.

Statements concerning genes that are false:

1. Genes always code for proteins.
2. All genes have the same function.

Genes are composed of DNA and can undergo mutations, which can result in changes to the sequence of nucleotides in a gene. However, not all genes code for proteins, as some genes code for other functional molecules like stable RNA molecules. Additionally, genes have different functions, as they can encode proteins or other functional molecules that carry out specific functions in a cell.