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A cross between a diheterozygous mouse GgHh and a tester gghh generates offspring with the following...

A cross between a diheterozygous mouse GgHh and a tester gghh generates offspring with the following genotypes: 84GgHh 14Gghh 90gghh 12ggHh. Based on these data what is the distance between the two genes?

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Answer:

Hint: Non-recombinant progeny are more common and lare number in linkage when compare to recombinant progeny. Hence, GgHh & gghh are non-recombinant and Gghh & ggHh are recombinant progeny.

Recombination frequency (RF)= (no. of recombinant progeny / total progeny)100

RF= (26 /200)100 = 13%

RF(%) = Distance between genes (mu)

Distance between eye color and body color = 13 m.u.

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