Question

Genetic recombination occurs due to

• A. Mitosis and meiosis
• B. Fertilisation and mitosis
• C. Fertilisation and meiosis
• D. None of the above

Answer 1

The correct option is C Fertilisation and meiosis

Meiosis involves the pairing of homologous chromosomes and exchange of genetic material between non-sister chromatids of homologous chromosomes. This results in cells with chromosomal combinations different from those originally present in the parent.

Also, during fertilisation DNAs from both the parents are combined resulting in a recombinant DNA.

So, the correct answer is 'Fertilisation and meiosis'