Inheritance, Variation & Evolution -> Variation + Evolution

Question 1

In evolutionary diagrams, what do junctions between the lines represent?

Answer 1

A common ancestor of two species.

Question 2

What is a mutation? (1 mark)

Answer 2

A change in DNA

Question 3

How does asexual reproduction differ from sexual reproduction? (2 marks)

Answer 3

Asexual reproduction involves only one parent whereas sexual reproduction involves two parents. (1)

Asexual reproduction produces genetically identical cells whereas sexual reproduction produces genetically different cells (1)