Variation 4.6.2.1

Question 1

What is discontinuous?

Answer 1

controlled by one gene (MONOGENIC)

Question 2

What is continuous?

Answer 2

controlled by many genes (POLYGENIC)

Question 3

What is variation?

Answer 3

differences in characteristics due to genes(inherited), environment or both

Question 4

What are the different types of mutations?

Answer 4

• substitution
• insertion
• deletion
• inversion

Question 5

How does a change in species occur?

Answer 5

If a mutation leads to a new phenotype (which is rarely) and if this new phenotype is suited to an environmental change it can lead to a relatively rapid change in the species.