Question

The study of chromosomes at meiotic diplotene shows that

• A. The chromosomes gradually becomes visible.
• B. The pairing of homologous chromosomes which had initiated in the earlier stage is completed.
• C. The homologous chromosomes remain united by chiasmata.
• D. None of the above.

Answer 1

The correct option is C The homologous chromosomes remain united by chiasmata.

During diplotene stage, chromatids become clear and the bivalents are now called as tetrads. At places, homologous chromosomes remain attached to each other. The points of attachment between non-sister chromatids of two homologous chromosomes are called as chiasmata.

Thus, the correct answer is option C.