Which of the following is the largest chromosome?

Correct option is D

Correct Answer: D. Lampbrush chromosome

Explanation:

• Lampbrush chromosomes are the largest chromosomes known, found during the diplotene stage of meiosis in oocytes of amphibians and some other animals.

• They are named for their brush-like appearance due to extended loops of chromatin.

Information Booster:

• The loops in lampbrush chromosomes represent active transcription sites, helping in rapid RNA synthesis during egg development.

Additional Information:

• A. Satellite chromosome

  • Has secondary constriction; not necessarily large in size.

• B. X-chromosome

  • One of the largest in humans, but not the largest overall.

• C. Telocentric chromosome

  • Centromere at the end; size varies, not specifically the largest.