QUESTION 4 Which gametophytes produce eggs in archegonia? O none of the above th

Question

QUESTION 4 Which gametophytes produce eggs in archegonia? O none of the above the megagametophyte of a gymnosperm the gametophytes of all three groups: fern, gymnosperm, and angiosperm the gametophytes of the fern and the gymnosperm, but not the angiosperm O the (bisexual) gametophyte of a fern the megagametophyte of an angiosperm QUESTION 5 Which gametophytes produce sperm in antheridia? O the gametophytes of all three groups: fern, gymnosperm, and angiosperm none of the above the microgametophyte of an angiosperm the microgametophyte of a gymnosperm the (bisexual) gametophyte of a fern the gametophytes of the fern and the gymnosperm, but not the angiosperm

Explanation / Answer

4) Option 4; The gametophytes of the ferns and the gymnosperm, but not the angiosperms produce eggs in archegonia. Archegonium is the female reproductive organ in ferns and mosses predominantly. It is also present in some gymnosperms like cycads and conifers. The term is not used for angiosperms because the megagametophyte is reduced to just a few cells, one of which differentiates into the egg cell.

5) Option 5; the (bisexual) gametophyte of a fern produces sperm in antheridia. Antheridium is the male reproductive organ found on the gametophytes of mosses and ferns. In gymnosperms and angiosperms, the male gametophytes have been reduced to pollen grains and in most of these the antheridia have been reduced to a single generative cellwithin the pollen grain.

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