Functional megaspore in an angiosperm develops into

(1) ovule

(2) endosperm

(3) embryo sac

(4) embryo

Subtopic:  Pistil: Female Gametophyte |
 81%
From NCERT
NEET - 2017
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Wind pollination is common in

(1) lilies

(2) grasses

(3) orchids

(4) legumes

Subtopic:  Pollination & Outbreeding Devices |
 89%
From NCERT
NEET - 2011
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Unisexuality of flowers prevents

(1) autogamy, but not geitonogamy

(2) Both geitonogamy and xenogamy

(3) geitonogamy, but not xenogammy

(4) autogamy and geitonogamy

Subtopic:  Pollination & Outbreeding Devices |
 61%
From NCERT
NEET - 2008
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What does the filiform apparatus do at the entrance into ovule?

(1) It helps in the entry of pollen tube into a synergid

(2) It prevents entry of more than one pollen tube into the embryo sac

(3) It brings about opening of the pollen tube

(4) It guides pollen tube from a synergid to egg

Subtopic:  Pistil: Female Gametophyte |
 63%
From NCERT
NEET - 2008
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Male gametes in angiosperms are formed by the division of:

(1) microspore

(2) generative cell

(3) vegetative cell

(4) microspore mother cell

Subtopic:  Stamen: Male Gametophyte |
 68%
From NCERT
NEET - 2007
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Long filamentous threads protruding at the end of a young cob of maize are :

(1) anthers

(2) styles

(3) ovaries

(4) hairs

Subtopic:  Pollination & Outbreeding Devices |
 80%
From NCERT
NEET - 2006
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Male gametophyte in angiosperms produces

(1) two sperms and a vegetative cell

(2) single sperm and a vegetative cell

(3) single sperm and two vegetative cells

(4) three sperms

Subtopic:  Stamen: Male Gametophyte |
 88%
From NCERT
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Apomixis is

(1) formation of seeds by fusion of gametes

(2) formation of seed without syngamy and meiosis

(3) formation of seeds with syngamy but no meiosis

(4) none of the above

Subtopic:  Apomixis & Polyembryony |
 90%
From NCERT
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What is the correct sequence of the formation of female gametophyte in angiosperms?

(1) Nucellus, megapore tetrad, megaspore mother cell, megaspore, female gametophyte

(2) Megaspore tetrad, nucellus, megaspore mother cell, megaspore, female gametophyte

(3) Nucellus, megaspore mother cell, megaspore tetrad, megaspore, female gametophyte

(4) Megaspore mother cell, megaspore tetrad, megaspore, nucellus, female gametophyte

Subtopic:  Pistil: Female Gametophyte |
 63%
From NCERT
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Which among the following is attached to the proximal end of filament?

(1) Stamen

(2) Anther

(3) Petal

(4) Pollen sac

Subtopic:  Stamen: Anther |
 59%
From NCERT
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