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Q.

In a test cross if recombination frequency between genes is 
ab = 12%, bc = 4%, ad = 2 %, a & c = 8 %  , distance between gene c & d will be 

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a

10

b

10 or 6

c

3 or 6

d

6

answer is C.

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Detailed Solution

In a test cross, if recombination frequency between genes is 
ab = 12%, bc = 4%, ad = 2 %, a & c = 8 % ,the distance between gene c & d will be 10 or 6.

Distance between two genes is measured as centi morgans. One cM/one map unit equals 1% of recombination frequency.

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