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Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridized, then segregation will show:

  1. A
    higher number of the recombinant types
  2. B
    segregation in the expected ratio
  3. C
    segregation in ratio
  4. D
    higher number of the parental types

Solution & Step-by-step Explanation

When genes are tightly linked (located very close on the same chromosome), they tend to be inherited together and do not assort independently. This results in a much higher frequency of parental genotypes and a very low frequency of recombinant types in the generation.

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Two genes R and Y are located very close on the chromosomal linkage map of maize plant. When RRYY and rryy genotypes are hybridized, then segregation will show:
A
higher number of the recombinant types
B
segregation in the expected ratio
C
segregation in ratio
D
higher number of the parental types

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