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Question

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 F2 segregation will show:


A
Higher number of the parental types
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B
Higher number of the recombinant types
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C
Segregation in the expected 9 : 3 : 3 : 1 ratio
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D
Segregation in 3 : 1 ratio
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Solution

The correct option is A Higher number of the parental types

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 F2 segregation will show higher number of the parental types.


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