Question

Crossing over is an event occurring during meiosis.

• A. True
• B. False

Answer 1

The correct option is A True

Crossing over :

1. Crossing over is a mechanism in which genetic material or chromosomal segments are exchanged between non-sister chromatids of the homologous chromosomes during sexual reproduction. It occurs in meiosis (pachytene stage of prophase-I).
2. Crossing over is necessary for proper chromosomal segregation during meiosis.
3. It also allows for genetic variety since the chromatids kept together with the centromere are no more similar due to genetic material switching during crossing over.
4. Meiosis participates in the process of reproduction during gamete formation.

The given statement ‘Crossing over is an event occurring during meiosis’ is true.