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In a cross between individuals homozygou...

In a cross between individuals homozygous for (a, b) and wild type `(+ +).` In this cross 700 out of 1000 individuals were of parental type. Then the distance between a and b is :-

A

70 map unit

B

35 map unit

C

30 map unit

D

15 map unit

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The correct Answer is:
C
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