Question

The gametophyte is not an independent, free living generation in:

• A. Pinus
• B. Polytrichum
• C. Adiantum
• D. Marchantia

Answer 1

The correct option is A Pinus

In angiosperms(Pinus) and other seed plants, gametophytes are not independent "plants".Instead, they are small structures that are retained inside the sporophyte for all or parts of their life.

In bryophytes (Polytrichum(mosses), Marchantia(liverworts), and hornworts) and ferns(Adiantum) the gametophyte is the most visible stage of the life cycle. The bryophyte gametophyte is longer lived, nutritionally independent, and the sporophytes are typically attached to the gametophytes and dependent on them.