Function of filiform apparatus is to 

(1) recognise the suitable pollen at stigma

(2) stimulate division of generative cell

(3) produce nectar

(4) guide the entry of pollen tube

Subtopic:  Pistil: Female Gametophyte |
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Non-albuminous seed is produced in

(1) maize

(2) castor

(3) wheat

(4) pea

Subtopic:  Seed |
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Which one of the following statement is correct?

(1) Hard outer layer of pollen is called intine

(2) Sporogenous tissue is haploid

(3) Endothecium produces the microspores

(4) Tapetum nourishes the developing pollen 

Subtopic:  Stamen: Anther | Stamen: Microsporangium |
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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 |
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Even in absence of pollinating agents seed-setting is assured in

(1) Commellina

(2) Zostera

(3) Salvia

(4) fig

Subtopic:  Pollination & Outbreeding Devices |
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The coconut water and the edible part of coconut are equivalent to

(1) endosperm

(2) endocarp

(3) mesocarp

(4) embryo

Subtopic:  Endosperm |
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Wind pollination is common in

(1) lilies

(2) grasses

(3) orchids

(4) legumes

Subtopic:  Pollination & Outbreeding Devices |
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Nucellar polyembryony is reported in species of

(1) Gossypium

(2) Triticum

(3) Brassica

(4) Citrus

Subtopic:  Apomixis & Polyembryony |
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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 |
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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 |
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh
To view explanation, please take trial in the course below.
NEET 2022 - Target Batch - Aryan Raj Singh

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