Question

Heterosporous pteridophytes always produce

• A. Monoecious gametophytes
• B. Dioecious gametophytes
• C. Homothallic gametophytes
• D. None of the above

Answer 1

Answer: (B)

Dioecious gametophytes

Heterosporous means they produce two kinds of spores, which are large megaspores and small microspores. The megaspores produce megagametophytes that only form archegonia and microspores only produce microgametophytes that produce antheridia, hence, gametophytes are dioecious.

Thus, the correct answer is option B.