AQA A Level Biology June 2010 Unit 4 Question 3d

dhwanikotharii

3

Hi can anyone help me with the question stated above as I'm so confused with how you come about to solve it.

Thanks

Reply 1

ThatGuy107

13

I’ll go and have a look, give me 2 minutes

Reply 2

ThatGuy107

13

Is it about the Hardy Weinburg equation?

Reply 3

ThatGuy107

13

Okay, so you need to square root 0.33 to find ‘q’ (frequency of recessive allele), then take this away from 1 to find frequency of dominate allele. Multiply together, multiply by 2 (to find 2pq) then convert to a %

Reply 4

dhwanikotharii

OP

3

Thank you so much.

Why do we use 0.33? Is it because the alleles are talking about hair length?

Original post by ThatGuy107

Okay, so you need to square root 0.33 to find ‘q’ (frequency of recessive allele), then take this away from 1 to find frequency of dominate allele. Multiply together, multiply by 2 (to find 2pq) then convert to a %