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Q.
Lack of independent assortment of two genes $A$ and $B$ in fruit fly Drosophila is due to
Chhattisgarh PMTChhattisgarh PMT 2006
Solution:
Lack of independent assortment of two genes A and B in fruit fly Drosophila is due to linkage When genes are closely present link together in a group and transmitted as a single unit this phenomenon is called linkage. It was discovered by Morgan. It is an exception of Mendel's principle of independent assortment.