Question

In Selaginella, reduction division occurs during the formation of

• A. microspores
• B. sperms
• C. megaspores
• D. Both (1) and (3)
  

Answer 1

The correct option is D

Both (1) and (3)

The correct option is D.

Explanation for correct option:

1. Megaspores and microspores, respectively, germinate and produce female and male gametophytes.
2. Female gametophytes are kept on the parent sporophytes for varying amounts of time in these plants.
3. The female gametophytes are responsible for the development of the zygotes into newborn embryos.
4. Selaginella is a vascular cryptogam that is tiny and everlasting.
5. In Selaginella, reduction division or meiosis occurs in both the microspore mother cell and the megaspore mother cell, resulting in haploid microspores and megaspores, respectively.
   

Explanation for incorrect option:

Option B:

1. The sperm cells then go to their destination in the cytoplasm of the pollen tube's big vegetative cell.
2. As a result, a pollen tube is the tricellular male gametophyte generation that emerges from a pollen grain to cause double fertilization.

Final answer: Reduction division occurs in both the microspore mother cell and the megaspore mother cell in Selaginella.