Question

Which of the following does not occur during condensation of chromosomes?

• A. Unfolding of protein molecules
• B. Coiling of DNA
• C. Dehydration
• D. Hydration

Answer 1

Answer: (D)

Hydration

Chromosome condensation is the dramatic re-organization of the long thin chromatin strands into the compact short chromosomes that occur in mitosis and meiosis. Here, the unfolding of proteins takes place, the DNA coils, dehydration takes place. However, there is no addition of water molecule or hydration that takes place during condensation.

So, the correct answer is option D.