An angiospermic plant has 24 chromosomes in microspore mother cell. The number of chromosomes in its endosperm will be
Options
(a) 36 (b) 12 (c) 48 (d) 24
Correct Answer:
36
Explanation:
No […]
Cross pollination in crop is known as
Options
(a) chasmogamy (b) autogamy (c) cleistogamy (d) allogamy
Correct Answer:
allogamy
Explanation:
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Sugarcane is generally propagated vegatatively because
Options
(a) it does not produce seeds (b) incidence of disease gets reduced (c) its seeds have long dormancy (d) it helps in maintaining genetic purity
Correct […]
When micropyle, chalaza and funicle are in a straight line, the ovule is called
Options
(a) orthotropous (b) anatropous (c) amphitropous (d) campylotropous
Correct Answer:
orthotropous
Explanation:
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Contrivances for self pollination are
Options
(a) bisexuality (b) homogamy (c) cleistogamy (d) all of these
Correct Answer:
all of these
Explanation:
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Double fertilization in angiosperms was first explained by
Options
(a) Dutrachal (b) Nawaschin (c) Stewart (d) Maheswari
Correct Answer:
Nawaschin
Explanation:
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A gymnospermic leaf carries 16 chromosomes. The number of chromosomes in its endosperm is
Options
(a) 20 (b) 16 (c) 12 (d) 8
Correct Answer:
8
Explanation:
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When pollen of a flower is transferred to the stigma of another flower of the same plant, the pollination is referred as
Options
(a) xenogamy (b) autogamy (c) allogamy (d) geitonogamy
Correct Answer: […]
Pollination which occur in closed flowers is known as
Options
(a) dicliny (b) allogamy (c) protogyny (d) cleistogamy
Correct Answer:
cleistogamy
Explanation:
No explanation available. Be the first to write the explanation for […]
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