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Question : The A and B genes are 10 cM apart on a chromosome. If an AB/ab heterozygote is test crossed to ab/ab, how many of each progeny class would you expect out of 100 total progeny?

Answer»

25 AB, 25 ab, 25 Ab, 25 aB
10 AB , 10 ab
45 AB , 45 ab
45 AB, 45 ab, 5 Ab , 5aB

Answer :B


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