Q536
Crossing over takes place during
A.
Leptotene
B.
Zygotene
C.
Diplotene
D.
Pachytene
AnswerAnswer: Option D
Solution
Answer: Option D
Solution:
Crossing over takes place during Pachytene.The long pachytene stage begins with the completion of synapsis and is associated with further thickening and shortening of chromosomes. During this stage, exchanges of chromosome material between maternal and paternal homologous chromosomes occur by crossing over.