AQA - BIOL4 - 13th JUNE 2014

There are two equations for the HW principle- p + q=1 and p^2 + q^2 + 2pq =1

When you've got 0.49, that's the value for q^2, and you're trying to find out the heterozygous frequency (2pq) so
1/ you square root 0.49 to get 0.7 (q)
2/ do 1-0.7 to get 0.3 (q)
3/ do 2 x 0.3 x 0.7
4/ multiply by 100 to get 42%

hope that helps!

The answer was 32%

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The answer was 32%

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The paper felt like I was doing an ISA at some points!

For the hardy W you had to do 4/100 then square root 0.04 to get 0.2 then minus that from 1 to get 0.8 then do 2 x 0.8 x 0.2 to get 0.32 then times by 100 to get a percentage of 32

What do you guys get for the population size calculation in question 1?

What do you guys get for the population size calculation in question 1?

Fudge i ran out of time when i was half way through q7 (but did q8 first so phew!) lol and in the hardy weinberg i did the calculation right... But i freakin used the square root of 0.4 when it was meant to be 0.04!!!! Eugh!!!


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What do you guys get for the population size calculation in question 1?

I got 59.8 million as the pop. size, but my friends are telling me that it was population increase we had to find...

What? I though the population decreased by like 20410 or a number similar to that

I did the same thing used 0.4 urghhh so annoying because i knew how to do it just used the wrong no

I got 59.8 million as the pop. size, but my friends are telling me that it was population increase we had to find...