chromosome mutations

Question 1

What is non disjuncton?

Answer 1

= chro,oso,es in mispsis 1 do not seperate properly or the chromarids do not split equally in anaphase
= the resulting gamete will nit have the correct number of chromsoomes

Question 2

What 2 affects can this have?

Answer 2

= polyploidy- changes in whole sets of chromosomes
= anueploidy- changes in the number of the individual chromosomes
=

Question 3

What is polyplpidy?

Answer 3

= should be haploid gametes
= changes in whole sets of chromosomes
= occur when there is 3 or more sets of chromosomes rather than 2
= mainly occur in plants
= failure of chromatids to seperate equally
=

Question 4

What is anaeploidy?

Answer 4

= change in number of 1 indivual chromosome
= more or fewer
=