Question

Zygotic meiosis is characteristic of

• A. Prokaryotes
• B. Thallophyta
• C. Pteridophyta
• D. Spermatophyta

Answer 1

Answer: (B)

• Thallophytes have dominant gametophytic generation i.e., the presence of haploid individuals.
• In zygotic meiosis, meiotic division occurs in zygotes resulting in the formation of haploid individuals.
• In thallophytes, the haploid plant body is not differentiated into root, stem, and leaves.

Other options:
Option A: In the case of prokaryotes, there is no meiosis, as there is a lack of sexual reproduction.
Option C: In the case of Bryophytes, sporic meiosis occurs, which gives rise to spores but not gametes. Haploid spores develop haploid individuals.
Option D: In the case of Spermatophyta (gymnosperm and angiosperms) gametic meiosis is seen. In this, meiosis occurs during gamete formation. It results in the formation of haploid gametes which fuse during fertilization and form diploid zygotes having a diplontic life cycle.

Therefore, the correct answer is option B.