Biology
General
Easy
Question
Characters of both conifers and cycads are found in
The correct answer is:
shows resemblance with bothCycadales and Coniferales. Resemblanes between and Cycadales are well-developed nuellar beak and pollen chamber, haustorial nature of pollen tube, multiflagellated spermatozoids, large egg, massive female gametophyte with well-developed venter, endoscopic embryo with two cotyledons, hypogeal seed germination.
Its resemblance with Coniferales are cone like appearance, long and dwarf shoots, pycnoxylic wood, uniseriatemedullary rays, longitudinal dehiscence of microsporangia and sessile ovule, etc.
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Isogamous mean
I) both gametes are similar in size and non-motile,
II) both gametes are dissimilar in size and motile
III) both gametes are similar in size and motile
IV) both gametes are dissimilar in size and non-motile
Which of the statement(s) given above is/are correct?
Isogamous mean
I) both gametes are similar in size and non-motile,
II) both gametes are dissimilar in size and motile
III) both gametes are similar in size and motile
IV) both gametes are dissimilar in size and non-motile
Which of the statement(s) given above is/are correct?
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‘Club moss’ belongs to
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is a
is a
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Which is wrong in respect to bryophytes?
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Oogamous means
Oogamous means
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Tallest flowering tree is
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Gemmae are asexual buds, which originate from small receptacles called gemma cups.
These are found in
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These are found in
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produces four haploid nuclei in which
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Cleavage polyembryony occurs in
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Isogamy is found in
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