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Which one of the following is a correct statement?
A
Origin of seed habit can be traced in pteridophytes
B
Pteridophyte gametophyte has a protonemal and leafy stage
C
In gymnosperms female gametophyte is free-living
D
Antheridiophores and archegoniophores are present in pteridophytes
Detailed Solution
In heterosporous pteridophytes such as Selaginella and Salvinia the female gametophyte is retained on the parent sporophyte for a variable period, and the zygote develops into a young embryo there.
This event is a precursor to the seed habit, so the origin of the seed habit can be traced in pteridophytes.
Protonema and leafy stages are found in mosses, the gymnosperm female gametophyte is not free-living, and antheridiophores and archegoniophores occur in liverworts such as Marchantia.
This event is a precursor to the seed habit, so the origin of the seed habit can be traced in pteridophytes.
Protonema and leafy stages are found in mosses, the gymnosperm female gametophyte is not free-living, and antheridiophores and archegoniophores occur in liverworts such as Marchantia.