Question

In pteridophytes, prothallus produces __________________.

• A. sporangia
• B. antheridia and archegonia
• C. vascular tissues
• D. root, stem and leaf

Answer 1

The correct option is B antheridia and archegonia

In pteridophytes, spore is a haploid structure, which develops after meiosis of spore mother cell. On germination, it gives rise to a green haploid prothallus (gametophyte) which is monoecious, i.e., has both antheridia (male sex organs) and archegonia (female sex organs) in homosporous pteridophytes.

Example, Nephrolepis, Adiantum

So the correct option is B.