Questions
The total number of progeny obtained from a dihybrid cross is 1280 in the F2 generation. How many of them are recombinant ?
a
240
b
360
c
480
d
720
detailed solution
Correct option is C
The phenotypic ratio of a typical mendelian dihybrid cross is 9:3:3:1. Where 3:3 is for recombinants. Therefore, if 1280 progenies are obtained in F2 generation then the number of recombinants will be equal to 1280×616=480.Talk to our academic expert!
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