Question
Biology Question on Kingdom Plant
A prothallus is
A
a structure in pteridophytes formed before the thallus develops
B
a sporophytic free living structure formed in pteridophytes
C
a gametophyte free living structure formed in pteridophytes
D
a primitive structure formed after fertilisation in pteridophytes
Answer
a gametophyte free living structure formed in pteridophytes
Explanation
Solution
A prothallus is a small flattened multicellular structure representing independent gametophytegeneration in pteridophytes. For example - club mosses, horsetails, and ferns. In some pteridophytes, a single prothallus bears both males as well as female sex organs. In others, there are separate male and female prothalli.