Mutations

Question 1

Define Mutation

Answer 1

A change in DNA code

Question 2

Define Mutagen

Answer 2

a factor increasing the rate of DNA mutation

Question 3

Three types of mutation

Answer 3

Ionising radiation, chemical, virus

Question 4

Describe the impact of ionising radiation on DNA, and types of ionising radiation

Answer 4

Energy can break bonds in DNA

UV rays, Xrays

Question 5

Describe the impact of chemical mutagens on DNA, and types of chemical mutagens

Answer 5

Chemicals have reactions with DNA

Cigarette smoke, barbecuing, benzoyl peroxide

Question 6

Describe the impact of viruses on DNA

Answer 6

Can integrate their DNA with yours

Question 7

Types of DNA mutations

Answer 7

Point mutation, silent mutation, frame shift (insertion/deletion)

Question 8

Impact of mutation on somatic cell

Answer 8

Adult cells
Only affects that cell, and any cells that it divides into

Question 9

Impact of mutation on germ cell

Answer 9

Sex cells
Affects the entire child created from the mutated cell