Which statement is scientifically based?

a. Mutations are rare events.

b. All mutations are harmful.

c. Some mutations can be contagious, like infections.

d. Mutations are not passed from parent to offspring.

Answer:- a. Mutations are rare events.

The correct answer is ‘Mutations are rare events.’ They occur about 1 in 10,000 times when DNA is replicated. However, the rate of mutation can increase if an organism is exposed to certain chemicals or radiation. Mutations are rare events. They occur about 1 in 10,000 times when DNA is replicated. However, the rate of mutation can increase if an organism is exposed to certain chemicals or radiation.