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:
No explanation available. Be the first to write the explanation for this question […]
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 […]
Type of pollination in Commelina is
Options
(a) chasmogamy (b) geitonogamy (c) xenogamy (d) cleistogamy
Correct Answer:
cleistogamy
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Ubisch bodies are present in
Options
(a) pollen tube (b) pollen grain (c) micrspore (d) tapetum
Correct Answer:
tapetum
Explanation:
No explanation available. Be the first to write the explanation for this question […]
Under water pollination occurs in
Options
(a) Nymphaea (b) Zostera (c) Vallisneria (d) Ottelia
Correct Answer:
Zostera
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
Upon fertilization while ovule develops into seed, which structure develops from a nucleus?
Options
(a) pericarp (b) testa (c) perisperm (d) tegmen
Correct Answer:
perisperm
Explanation:
No explanation available. Be the first to […]
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