Principle of Inheritance and VariationEasyBloom L3
Question
Linkage reduces the frequency of
Options
A.hybrids
B.all parental types
C.homozygous recessive parents
D.heterozygous recessive parents
Solution
Sol.(a) [Key Concept: Linkage — Effect on Recombinant Types] Linkage reduces the frequency of recombinant types (hybrids with new gene combinations). When genes are linked on the same chromosome, they tend to be inherited together (as parental combinations). Recombination (crossing over) is required to produce new combinations (hybrids/recombinants). The closer the genes are on a chromosome, the less crossing over and fewer recombinant types. Linkage INCREASES parental type frequency and DECREASES recombinant (hybrid) type frequency.
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