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Question

The total number of progeny obtained through dihybrid cross of Mendel is 1280 in F2 generation. How many of them are recombinants?

A
240
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B
360
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C
480
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D
720
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Solution

The correct option is C 480

In a dihybrid cross, in F2 generation 16 types of combinations are formed, out of which 10 are parental combinations and 6 progeny show new combinations (recombinants). So, in the F2 generation out of the 1280 progeny formed, 800 showed parental phenotypes and 480 progenies were recombinants.


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