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An individual homozygous for gene a and ...

An individual homozygous for gene a and b is cross with wild type and `F_1` was back crossed with the double recessive. The appearance of the offspring is as follows
`++ to 39`
`ab to 31`
`a+ to 17`
`+b to 13`
Find out the distance between genes a and b .

A

31

B

30

C

42.8

D

3

Text Solution

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The correct Answer is:
B
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