CB3e Gene Mutation

Question 1

Variation in eye colour is caused by the…

Answer 1

OCA2 gene

Question 2

The OCA2 gene controls the amount of…

Answer 2

melanin produced

Question 3

Melanin is a protein that makes hair, eyes and skin _______ in colour

Answer 3

Darker

Question 4

Mutation

Answer 4

A change in a gene that creates a new allele

Question 5

Mutations happen when there is a mistake in copying DNA during…

Answer 5

cell division

Question 6

Mutations can occur naturally however it is more likely to happen if there is daage to the DNA caused by…

Answer 6

Radiaton or certain substances

Question 7

Sometimes a mutation produces an allele that cause a big change in the protein that is produced. This will affect how…

Answer 7

The body works

Question 8

Explain why the risk of devloping skin cancer can increase with the amount of sunlight your skin recieves

Answer 8

The more sunlight your skin recieves, the more the ultraviolet radition (from the sunlight) is likely to cause mutations on your skin which results in cancer

Question 9

The benefits of mapping a person’s genome

Answer 9

• can indicate their risk of developing diseases

- can help identify which medicenes might best be able to treat a person’s illness