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Which of the following is suitable for e...

Which of the following is suitable for experiment on linkage ?

A

aaBB `xx` aaBB

B

AABB `xx` aabb

C

AaBb `xx` AaBb

D

AAbb `xx` AaBB

Text Solution

Verified by Experts

The correct Answer is:
B
Linked and unlinked genes can be easily known form breeding experiments. Unlinled genes show independent assorment in a dihybrid ratio of `9:3:3:1` and the dihybrid or double test cross ratio od `1:1:1:1` with two parental and two recombinant types. The linked genes do not show independent asssortment but remain together and are inherited en block producing only parental type of progeny. They give a digybrid ratio of `3:1` and a test cross ratio of `1:1`
Linkage can be shown by a cross between homozygous dominant AABB and homozygous recessive aabb.
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