Question

In Pteridophytes, prothallus shows

• A. Lack of gametophyte
• B. Spore production
• C. The presence of tracheids
• D. Root, stem and leaf

Answer 1

The correct option is B Spore production

Prothallus is the gametophytic stage of pteridophytes.

• It is a thalloid structure and there is no distinction of roots, stems and leaves.
• It is attached to the substratum with the help of multicellular rhizoids.
• It produces male and female gametes which fuse to form a zygote. The diploid zygote develops into sporophyte which produces spores that germinate into haploid gametophyte.
• It has vascular system consisting of tracheary elements i.e. tracheids and vessels.

So, the correct answer is 'The presence of tracheids'.