Topic 4 - Chromosome Mutations [6]

Question 1

Polyploidy

Answer 1

A mutation resulting in an extra set of chromosomes. you could get triploid (3n) or tetraploid (4n), this is fatal in humans. seen commonly in plants though.

Change in whole sets of chromosomes.

Question 2

Non-disjunction

Answer 2

when the chromosomes fail to separate equally in anaphase, resulting in either Polyploidy or Aneuploidy

Question 3

Polyploidy

Answer 3

A mutation resulting in an extra set of chromosomes. you could get triploid (3n) or tetraploid (4n), this is fatal in humans. seen commonly in plants though.

Change in whole sets of chromosomes.

Question 4

Aneuploidy

Answer 4

Change in number of individual chromosomes

one more or fewer chromosomes