Which statement is true of all proteins?(1 point)

Question

Responses

They are created by mutations in DNA.
They are created by mutations in DNA.

They carry oxygen in human blood.
They carry oxygen in human blood.

Their main function is to cause mutations.

Answer 1

None of the provided statements are true of all proteins. Here’s a brief explanation of why each statement is inaccurate:

1. They are created by mutations in DNA. - This is not true; proteins are primarily synthesized based on the genetic information encoded in DNA through transcription and translation processes, not solely by mutations.

2. They carry oxygen in human blood. - While hemoglobin is a protein that carries oxygen in red blood cells, not all proteins have this function.

3. Their main function is to cause mutations. - Proteins do not have a function of causing mutations; in fact, many proteins are involved in processes that repair DNA and maintain genetic stability.

A more accurate statement about proteins would be that they perform a wide variety of functions in biological systems, including structural support, enzymatic activity, transport, and regulation.