Question

Exchange of genetic material takes place during ________.
a) Diplotene
b) Leptotene
c) Zygotene
d) Pachytene

Answer 1

Hi,

Dear student,

Option D is correct.

Reason : Because crossing over of homologous chromosomes takes place during Pachytene.

Hope it helps.

Answer 2

Pachytene is the third stage of Prophase I in meiosis, which follows after Leptotene and Zygotene stages.

The exchange of genetic material takes place at this stage, among the non-sister chromatids of freshly thickened homologous chromosomes.

The exact site where this genetic exchange between the paternal and maternal chromosomes occurs is called chiasmata.

This phase is important for perfect segregation of chromosomes, after which these chromosomes recombine to form the resultant traits in the offspring.