Question

A Prothallus is:

• A. A primitive structure formed after fertilization in pteridophytes
• B. A gametophyte free living structure formed in pteridophytes
• C. A structure in pteridophytes formed before the thallus develops
• D. A sporophytic free living structure formed in pteridophytes

Answer 1

The correct option is B A gametophyte free living structure formed in pteridophytes

A gametophyte free living structure formed in pteridophytes

In pteridophytes, the haploid spores germinate to give rise to a thalloid gametophyte called prothallus.
The prothallus consists of haploid male sex organ, antheridia and female sex organ, archegonia which give rise to antherozoids and eggs respectively.


Final answer

c. A gametophyte-free living structure formed in pteridophytes