Principle of Inheritance and VariationHard

Question

Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to

Options

A.repulsion
B.recombination
C.linkage
D.crossin over

Solution

W Bateson (1905) explained the Iack of Independent assortment in sweet pea and T H Morgan (1905) in Drosophila due to linkage. When genes closely present adhere or link together in a group and transmitted as a single unit, the phenomenon is called linkage. It stops the process of independent assortment. Incomplete linkage is broken down due to the crossing over.

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