Question
Biology Question on Kingdom Plant
The gametophyte is not an independent, free living generation in :
A
Polytrichum
B
Pinus
C
Adiantum
D
Marchantia
Answer
Pinus
Explanation
Solution
In gymnosperms (like Pinus), the male and female gametophyte do not have an independent free living existence. They remain within the sporangia retained on the sporophytes i.e., female gametophyte (within megasporangium) and male gametophyte (within microsporangium). In bryophytes like Marchantia and Funaria, the main plant body is a gametophyte which is independent and the sporophyte is partially or fully dependent on gametophytic generation. In pteridophytes (like Pteris), gametophyte is usually independent and sporophyte is the dominant phase in the life cycle.