Aleurone layer is

(1) haploid

(2) diploid

(3) triploid

(4) tetraploid

Subtopic:  Seed |
 76%
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NEET 2023 - Target Batch - Aryan Raj Singh
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Edible part of apple is the

(1) thalamus

(2) mesocarp

(3) epicarp

(4) endocarp

Subtopic:  Fruit |
 84%
From NCERT
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Pollination by bat is called

(1) ornithophily

(2) chitopteriphily

(3) malacophily

(4) anemophily

Subtopic:  Pollination & Outbreeding Devices | Post Pollination Events |
 68%
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NEET 2023 - Target Batch - Aryan Raj Singh
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During formation of which of the following free nuclear division occurs?

(1) Flower

(2) Endosperm

(3) Gametes

(4) Fruit

Subtopic:  Endosperm |
 94%
From NCERT
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Xenia and metaxenia terms are related with

(1) pollen culture

(2) xylem and phloem

(3) endosperm

(4) embryo

Subtopic:  Endosperm |
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Pollen grains are able to withstand extremes of temperature and dessication because their exine is composed of

(1) cutin

(2) suberin

(3) sporopollenin

(4) callose

Subtopic:  Stamen: Male Gametophyte |
 98%
From NCERT
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The pollen tube usually enters the embryo sac

(1) through one of the synergids

(2) by directly penetrating the egg

(3) between one synergid and central cell

(4) by knocking off the antipodal cells

Subtopic:  Post Pollination Events |
 89%
From NCERT
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Double fertilization involves

(1) fertilization of the egg by two male gametes

(2) fertilization of two eggs in the same embryo sac by two sperms brought by one pollen tube

(3) fertilization of the egg and the central cell by two sperms brought by different pollen tubes

(4) fertilization of the egg and the central cell by two sperms brought by the same pollen tube.

Subtopic:  Double Fertilization |
 79%
From NCERT
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Plants of which one of the following groups of genera are pollinated by the same agency?

(1) Triticum, Cocos, Mangifera

(2) Ficus, Kigelia, Casuarina

(3) Salvia, Morus, Euphorbia

(4) Bombax, Butea, Bauhinia

Subtopic:  Pollination & Outbreeding Devices |
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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 |
 84%
From NCERT
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