# Biology AS question Watch

1. Calculate the number of possible combinations of chromosomes if the diploid number is four? Assume there is no crossing over of chromosomes.

Many thanks.
3. (Original post by Gav107)
Can you explain how you got this please?
4. The options given are: (from what i remember)

16,
256,
32,
64
5. Diploid number is 4 so there's two pairs. So 2^2 =4
6. Nope, 16 was what i thought....

4/2 = 2
(2^2) = 4
4^2 = 16
8. I thought the formula given in the textbook is (2^n)^2

So the answer is (2*2*2*2)^2 = 16^2 = 256
9. n stands for the homologous chromosome pairs. Here they've given only the number of chromosomes (being 4) in the cell.

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