Understanding Mutations and Evolution

What is the primary role of mutations in the context of life on Earth?

• They are the ultimate source of genetic variation.

• They only occur in humans.

• They are the main cause of diseases.

• They always provide an advantage to organisms.

Why can't mutations in body cells lead to evolution?

• They are always harmful.

• They cannot be passed on to offspring.

• They are too rare to have an impact.

• They only occur in plants.

How can a mutation influence the gene pool?

• By occurring in body cells.

• By being present in gametes.

• By being unnoticed.

• By being harmful to the organism.

What is required for a beneficial mutation to increase in frequency in a population?

• It must occur in body cells.

• It must be passed on through mitosis.

• It must provide a survival advantage.

• It must be harmful to predators.

What does evolution refer to in the context of a gene pool?

• The sudden appearance of new species.

• The change of a gene pool over time.

• The extinction of certain species.

• The stability of genetic traits.