Mutations
A) rarely occur spontaneously.
B) can be caused by hazardous environmental agents.
C) affect only one gene.
D) cannot occur after birth.

Question

Quizplus · Accepted Answer

Mutations can be caused by hazardous environmental agents such as chemicals, radiation, and viruses. They can occur both spontaneously and as a result of external factors. Mutations can affect one or multiple genes and can occur at any point in an individual's life, not just at birth.