Filiform apparatus is characteristic feature of

1. generative cell

2. nucellar embryo

3. aleurone cell

4. synergids

Subtopic:  Pistil: Female Gametophyte |
 91%
From NCERT
NEET - 2015
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Which of the following are the important floral rewards to the animal pollinators?

(1) Colour and large size of flower

(2) Nectar and pollen grains

(3) Floral fragrance and calcium crystals

(4) Protein pellicle and stigmatic exudates

Subtopic:  Pollination & Outbreeding Devices |
 88%
From NCERT
NEET - 2015
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Geitonogamy involves

(1) Pollination of a flower by the pollen from another flower of the same plant

(2) Pollination of a flower by the pollen from the same flower

(3) Pollination of a flower by the pollen from a flower of another plant in the same population

(4) Pollination of a flower by the pollen from a flower of another plant belonging to a distant population

Subtopic:  Pollination & Outbreeding Devices |
 88%
From NCERT
NEET - 2014
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Pollen tablets are available in the market for

(1) In vitro fertilisation

(2) breeding programmes

(3) supplementing food

(4) Ex situ conservation

Subtopic:  Stamen: Male Gametophyte |
 90%
From NCERT
NEET - 2014
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Non-albuminous seed is produced in

(1) maize

(2) castor

(3) wheat

(4) pea

Subtopic:  Seed |
 70%
From NCERT
NEET - 2014
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An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is

1. cuticle

2. sporopollenin

3. lignin

4. cellulose

Subtopic:  Stamen: Male Gametophyte |
 96%
From NCERT
NEET - 2012
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Wind pollination is common in

(1) lilies

(2) grasses

(3) orchids

(4) legumes

Subtopic:  Pollination & Outbreeding Devices |
 83%
From NCERT
NEET - 2011
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Nucellar polyembryony is reported in species of

(1) Gossypium

(2) Triticum

(3) Brassica

(4) Citrus

Subtopic:  Apomixis & Polyembryony |
 81%
From NCERT
NEET - 2011
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In which one of the following pollination is autogamous?

(1) Xenogamy

(2) Chasmogamy

(3) Cleistogamy

(4) Geitonogamy

Subtopic:  Pollination & Outbreeding Devices |
 75%
From NCERT
NEET - 2011
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Apomictic embryos in Citrus arise from

(1) synergids

(2) maternal sporophytic tissue in ovule

(3) antipodal cells

(4) diploid egg

Subtopic:  Apomixis & Polyembryony |
 68%
From NCERT
NEET - 2010
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