Question

During conjugation in Paramecium

• A. Out of the four micronuclei formed , three nuclei degenerate
• B. Out of the twelve macronuclei formed ,four nuclei degnerate
• C. Zygote nucleus undergoes eight successive divisions in
  each conjugates
• D. Out of the sixteen nuclei formed from zygote, 12
  become macronuclei 4 micronuclei

Answer 1

The correct option is A Out of the four micronuclei formed , three nuclei degenerate

The diploid mircronucleus of each conjugant divides by meiosis. Thus, 4 haploid daughter micro nuclei are produced of which 3 degenerates in each conjugate , while the remaining one divides by mitosis 2 unequal pro nucleus.