Question

Exchange of segments between non-sister chromatids of homologous chromosomes is

• A. Crossing over
• B. Translocation
• C. Linkage
• D. Inversion

Answer 1

The correct option is A Crossing over

Crossing over is the exchange of chromosome segments between non-sister chromatids during the production of gametes. The effect is to shuffle the alleles on parental chromosomes, so that the gametes carry combinations of genes different from either parent.

So, the correct option is 'Crossing over'.