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I have a qs about genetics section in bio. please help.?
What is he probability of an offspring genotype Ww;xx;Yy;Zz from parents Ww;Xx;Yy;Zz and Ww;Xx;yy;ZZ?
The answer is 1/32. I don't know how to work it out. Do we use the punter square and is this a dihybrid cross?
Thanks for your help
2 Answers
- Anonymous7 years ago
Punnett Square.
There are 64 possible gene pairs to choose from, but the gene sequence is only 4 genes long so 4 out of the 8 gene columns (50%) will provide a gene which reduces the odds down to 32 (28 grey options and 4 orange). Since that gene sequence is only possible once, 1/32.
