Botany-Linkage & Recombination
NEET Botany Linkage & Recombination MCQ Question
Type: MCQ-diagram based-Easy-Class 12
Consider a diagram depicting a pair of homologous chromosomes in Drosophila melanogaster during meiosis. If genes A and B are located close to each other on the same chromosome, which phenomenon is most likely to occur?
A
Linkage, resulting in reduced recombination frequency
B
Independent assortment, leading to equal segregation
C
Crossing over, producing high genetic variation
D
Mutation, causing a change in chromosome number
Correct Answer
Option A
Detailed Explanation
When genes are located close to each other on the same chromosome, linkage occurs, which reduces the likelihood of crossing over and recombination, as explained by Morgan's experiments with Drosophila melanogaster.
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