I am a high school student currently studying Mendelian genetics.
I stumbled upon a question that said two plants with the genotypes PpQq each are selfed, resulting in the formation of 1000 seeds. The question then asks to find the frequencies of the following genotypes:
Ppqq, PpQq, ppQq and PpQQ
To solve this, I found the ratio (2:4:2:2), divided each by 16 and multiplied by 1000 to find the exact number of each progeny. This is probably a very basic and silly doubt, but I'm confused.
I get that the probability of, say, 'Ppqq' is 2/16, but why do we have to multiply that by 1000? Can someone explain the right way to do this problem?
Thanks.