Component 2.6 - Variation

Question 1

What mechanisms generate heritable variation?

Answer 1

1) Crossing over during prophase 1 of meiosis
2) Independent assortment at metaphase 1 and 2 of meiosis
3) The mixing of 2 different parental genotypes at fertilisation

Question 2

Discontinuous variation vs continuous variation (Heritable?)

Answer 2

Discontinous - yes

Continuous - yes

Question 3

Discontinuous variation vs continuous variation (Non-heritable)

Answer 3

Discontinous - no

Continuous - yes

Question 4

Discontinuous variation vs continuous variation (number of genes it is controlled by)

Answer 4

Discontinuous - one

Continuous - many

Question 5

Discontinuous variation vs continuous variation (Is it influenced by the environment)

Answer 5

Discontinuous - no

Continuous - yes

Question 6

Discontinuous variation vs continuous variation (How many different values of the characteristic are there)

Answer 6

Discontinuous - one

Continuous - many