DENDROLOGY AND SOCIETY
FAMILIES OF GYMNOSPERM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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micro-gametophytes are 2N and mega-gametophytes are 1N
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micro-gametophytes are part of the sporophyte generation and mega-gametophytes are part of the gametophyte generation
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micro-gametophytes are male and mega-gametophytes are female
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None of the above
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Detailed explanation-1: -… each microspore develops into a microgametophyte (male gametophyte), which ultimately produces male gametes (sperm), and each megaspore produces a megagametophyte (female gametophyte), which ultimately produces female gametes (eggs).
Detailed explanation-2: -The female gametophyte is also commonly called the embryo sac or megagametophyte. The male gametophyte, also called the pollen grain or microgametophyte, develops within the anther and consists of two sperm cells encased within a vegetative cell (Gifford and Foster, 1989).
Detailed explanation-3: -Male gametophytes develop reproductive structures called antheridia (singular, antheridium) that produce sperm by mitosis. Female gametophytes develop archegonia (singular, archegonium) that produce eggs by mitosis.