Biology · PYQ NEET UG 2019(2)

Crossing over takes place between which chromatids and in which stage of the cell cycle?

1. A
   Non-sister chromatids of non-homologous chromosomes at Pachytene stage of prophase I.
2. B
   Non-sister chromatids of non-homologous chromosomes at Zygotene stage of prophase I.
3. C
   Non-sister chromatids of homologous chromosomes at Pachytene stage of prophase I.
4. D
   Non-sister chromatids of homologous chromosomes at Zygotene stage of prophase I.