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Two genes R and Y are located very close...

Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridized the `F_(2)` segregation will show

A

higher number of the recombinant types

B

segregation in the expected 9 : 3 : 3 : 1 ratio

C

segregation in 3 : 1 ratio

D

higher number of the parental types

Text Solution

Verified by Experts

The correct Answer is:
D
Higher number of the parental types formed when RRYY and rryy genotypes are hybridised giving the condition that R and Y genes are closely linked. Law of independent assortment does not applicable when the gene of different character occupy the same homologous chromosome i.e. are linked gene.
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