The formation of a gametophyte directly from the vegetative
Options
(a) apogamy (b) apospory (c) syngamy (d) heterogamy
Correct Answer:
apospory
Explanation:
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The function of tapetum is
Options
(a) protective (b) nutritive (c) allow respiration (d) protective & nutritive & allow respiration
Correct Answer:
nutritive
Explanation:
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The functional megaspore develops after three successive mitotic division into
Options
(a) embryo (b) embryo sac (c) ovule (d) zygote
Correct Answer:
embryo sac
Explanation:
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The hilum and micropyle lie side by side and very close to each other in
Options
(a) anatropous ovule (b) campylotropous ovule (c) amphitropous ovule (d) circinotropous ovule
Correct Answer:
anatropous ovule
Explanation: […]
The number of pollen grains, produced by each head inflorescence of family asteraceae which has 10 actionmorphic flowers, if each anther produces 20 pollen grains, are
Options
(a) 300 (b) 800 (c) 500 […]
The offsprings produced through which of the following process are not exactly similar to their parents?
Options
(a) parthenogenesis (b) asexual reproduction (c) sexual reproduction (d) dizygotic twins
Correct Answer:
sexual reproduction
Explanation: […]
The ovary after fertilization is converted into
Options
(a) embryo (b) endosperm (c) fruit (d) seed
Correct Answer:
fruit
Explanation:
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The ovule curvature is more pronounced and embryo sac become horse shoe shaped in which type of ovule?
Options
(a) amphitropous (b) anatropous (c) orthotropous (d) campylotropous
Correct Answer:
campylotropous
Explanation:
No explanation […]
The ovule during its development undergoes 180 degree curvature bringing the micropyle and chalaza in a line. The development of ovule conforms to
Options
(a) circinotropous (b) atropous (c) anatropous (d) amphitropous
Correct […]
The ubisch bodies found in tapetal cells help in the formation of
Options
(a) sporopollenin (b) entine & pollen kitt (c) exine (d) pollen kitt & pollinia
Correct Answer:
exine
Explanation:
No explanation […]
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