DENDROLOGY AND SOCIETY
FAMILIES OF GYMNOSPERM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Haploid
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Diploid
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Either A or B
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None of the above
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Detailed explanation-1: -The functional megaspore forms the female gametophyte which is also haploid; therefore, the ploidy is n.
Detailed explanation-2: -In terms of chromosomes, the gametophyte is haploid (has a single set of chromosomes), and the sporophyte is diploid (has a double set). In bryophytes, such as mosses and liverworts, the gametophyte is the dominant life phase, whereas in angiosperms and gymnosperms the sporophyte is dominant.
Detailed explanation-3: -POLLEN DEVELOPMENT In flowering plants, as in other groups of plants, a diploid, spore-producing generation (sporo-phyte) alternates with a haploid, gamete-producing gen-eration (gametophyte).
Detailed explanation-4: -The male gametophyte is a cone-like structure found on the lower branches of the plant. The female gametophyte is also a cone-like structure, but is found on upper branches of the plant for easy pollination.