# Unit 2 - How many different types of gametes can be produced from one cell? Watch

1. Assuming you have a cell in it with 6 chromosomes. Two pairs of 3.

The question is:
How many different types of gametes could be produced from this cell as a result of
different combinations of maternal and paternal chromosomes?

I don't seem to understand how to work it out
I thought the answer is always 4, however it is 8 for some reason.

The question is 5dii on
http://filestore.aqa.org.uk/subjects...W-QP-JUN10.PDF

Any help will be much appreciated
2. Posted from TSR Mobile
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3. I presume you mean 3 pairs of 2 chromosomes. The way to work it out is always 2 to the power of the haploid number. In this case the haploid number of chromosomes is 3 so it's 2 to the power of 3 = 8

4. Thank you very much!
I know how to work it out now! Although this way long can be quite confusing

(Original post by burtondog)
I presume you mean 3 pairs of 2 chromosomes. The way to work it out is always 2 to the power of the haploid number. In this case the haploid number of chromosomes is 3 so it's 2 to the power of 3 = 8
So if there were 7 pairs of 2, would the answer be 2^7?

And THANKS A LOT!
5. Yeah, the formula's one more way to do it. I didn't think of that before, so I worked out an example.

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