Question

Which of the following chromosomes are called as diplotene chromosomes?

• A. Polytene chromosomes
• B. Super numerary chromosomes
• C. Sex chromosomes
• D. Lamp brush chromosomes

Answer 1

The correct option is D Lamp brush chromosomes

Diplotene chromosomes are the lampbrush chromosomes. Lampbrush chromosomes are a special form of chromosome found in the growing oocytes (immature eggs) of most animals, except mammals. Chromosomes transform into the lampbrush form during the diplotene stage of meiotic prophase I due to an active transcription of many genes. They are highly extended meiotic half-bivalents, each consisting of 2 sister chromatids.