Q. In which stage of prophase - I, the segregation of the paired homologous chromosomes begins?

 219  143 NTA AbhyasNTA Abhyas 2020 Report Error

Solution:

The beginning of diplotene is recognised by the dissolution of the synaptonemal complex and the tendency of the recombined homologous chromosomes of the bivalents to separate from each other except at the sites of crossovers. These X-shaped structures, are called chiasmata. In oocytes of some vertebrates, diplotene can last for months or years.