NEET Botany Linkage & Recombination MCQ Question
Which of the following statements about linkage and recombination in Drosophila melanogaster is correct?
Linkage results in genes on the same chromosome being inherited together more frequently than those on different chromosomes.
Recombination occurs only through independent assortment of chromosomes during meiosis.
Linkage can lead to a higher frequency of recombinant offspring than parental types.
Recombination is a phenomenon that only occurs in organisms with polygenic traits.
Correct Answer
Detailed Explanation
Linkage refers to the tendency of genes located close to each other on a chromosome to be inherited together, which is supported by the findings of Thomas Hunt Morgan and his work with Drosophila melanogaster. Recombination, on the other hand, is the result of crossing over during meiosis, but it does not imply that recombinant offspring are more frequent than parental types.
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