Question

Which of the following is true of conifers?

A.) The sporophytes grow directly from the gametophyte



B.) The spores release from the gametophyte



C.) The gametophytes grow directly from the sporophyte



D.) The spores release from the male cones

Answer 1

A.) The sporophytes grow directly from the gametophyte
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Answer 2

The correct option will be option C (The gametophytes grow directly from the sporophyte).

Step-by-step explanation:

Conifers are gymnosperm trees with needle-shaped lives and reproductive structures-cones.

The life cycle of conifers is divided into two phase -

1. Longest phase- sporophyte (2n)

2. Reduced phase- gametophytes (n)

In conifers, both male and female gametophytes develop from different types of spores by separate cones. The male gametophyte develop from microspores which develop into pollen grains while female gametophyte develops from the megaspores that develop into eggs.

Since, in conifers the gametophyte are formed within the sporangia, a sporophytic structure and are completely dependent on the them for nutrition.

Thus, option C- the gametophytes grow directly from the sporophyte is the correct answer.