Question

Phenomenon of crossing over in diploid organisms is responsible for

• A. Linkage between genes
• B. Recombination between linked genes
• C. Segregation between genes
• D. Dominance of gene

Answer 1

Answer: (B)

Recombination between linked genes

• Linkage is referred to the phenomenon where alleles located close together on a chromosome show tendency to be inherited together during meiosis. Therefore, when a cluster of genes shows linkage behaviour they do not show independent assortment and recombination.
• Cross over is the exchange of genetic material between non-sister chromatids of homologous chromosomes. This process creates new combinations of traits.
• Thus, the phenomenon of crossing over in diploid organisms is responsible for recombination between genes showing incomplete linkage.

Hence, the correct option is "B".