Question 1: Palette 1/133

NEET 2026 MCQ

Arrange the following in the correct developmental sequence related to microsporogenesis :

A. Microspore tetrads

B. Sporogenous tissue

C. Pollen grains

D. Pollen mother cells

Choose the correct answer from the options given below :

A

$\mathrm{D}, \mathrm{A}, \mathrm{C}, \mathrm{B}$

B

$\mathrm{B}, \mathrm{D}, \mathrm{A}, \mathrm{C}$

C

$\mathrm{B}, \mathrm{D}, \mathrm{C}, \mathrm{A}$

D

$\mathrm{A}, \mathrm{D}, \mathrm{C}, \mathrm{B}$

Question 2: Palette 2/133

NEET 2026 MCQ

Which one of the following is a triploid cell?

A

Synergid

B

Central cell

C

Zygote

D

Primary endosperm cell

Question 3: Palette 3/133

NEET 2026 MCQ

Which one of the following types of pollination brings genetically different types of pollen grains to the stigma?

A

Autogamy

B

Xenogamy

C

Geitonogamy

D

Cleistogamy

Question 4: Palette 4/133

NEET 2026 MCQ

Which of the following plant produces non-albuminous seeds?

A

Pea

B

Wheat

C

Maize

D

Barley

Question 5: Palette 5/133

NEET 2026 MCQ

Which of the following in female gametophyte of an angiosperm helps in guiding the pollen tube for fertilizing the eggs?

A

Polar nucleus

B

Antipodals

C

Synergids

D

Central cells

Question 6: Palette 6/133

NEET 2026 MCQ

If the diploid chromosome number of typical angiosperm is 36 , what would be the chromosome number in its endosperm?

A

72

B

18

C

36

D

54

Question 7: Palette 7/133

NEET 2026 MCQ

How many theca are present in each lobe of a typical bilobed angiosperm anther ?

A

12

B

2

C

6

D

8

Question 8: Palette 8/133

NEET 2025 MCQ

Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : A typical unfertilised, angiosperm embryo sac at maturity is 8 nucleate and 7-celled.

Reason (R) : The egg apparatus has 2 polar nuclei.

In the light of the above statements, choose the correct answer from the options given below :

A

$\mathbf{A}$ is true but $\mathbf{R}$ is false

B

$\mathbf{A}$ is false but $\mathbf{R}$ is true

C

Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$

D

Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is NOT the correct explanation of $\mathbf{A}$

Question 9: Palette 9/133

NEET 2025 MCQ

Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A) : Both wind and water pollinated flowers are not very colourful and do not produce nectar.

Reason (R) : The flowers produce enormous amount of pollen grains in wind and water pollinated flowers.

In the light of the above statements, choose the correct answer from the options given below:

A

$\mathbf{A}$ is true but $\mathbf{R}$ is false

B

$\mathbf{A}$ is false but $\mathbf{R}$ is true

C

Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$

D

Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is NOT the correct explanation of $\mathbf{A}$

Question 10: Palette 10/133

NEET 2025 MCQ

How many meiotic and mitotic divisions need to occur for the development of a mature female gametophyte from the megaspore mother cell in an angiosperm plant?

A

1 Meiosis and 3 Mitosis

B

No Meiosis and 2 Mitosis

C

2 Meiosis and 3 Mitosis

D

1 Meiosis and 2 Mitosis

Question 11: Palette 11/133

NEET 2025 MCQ

Given below are two statements :

Statement I : Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.

Statement II : Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and fig fruit gets pollinated by fig wasp.

In the light of the above statements, choose the most appropriate answer from the options given below:

A

Statement I is correct but statement II is incorrect

B

Statement I is incorrect but statement II is correct

C

Both statement I and statement II are correct

D

Both statement I and statement II are incorrect

Question 12: Palette 12/133

NEET 2025 MCQ

Given below are two statements : One is labelled as Assertion (A) and other is labelled as Reason (R).

Assertion (A) : Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.

Reason (R) : Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.

In light of the above statements, choose the most appropriate answer from the options given below:

A

A is true but $\mathbf{R}$ is false

B

$\mathbf{A}$ is false but $\mathbf{R}$ is true

C

Both $\mathbf{A}$ and $\mathbf{R}$ are true and $\mathbf{R}$ is the correct explanation of $\mathbf{A}$

D

Both $\mathbf{A}$ and $\mathbf{R}$ are true but $\mathbf{R}$ is NOT the correct explanation of $\mathbf{A}$

Question 13: Palette 13/133

NEET 2025 MCQ

Match List I with List II :

	List - I		List - II
A	Scutellum	I	Persistent nuclellus
B	Non-albuminous seed	II	Cotyledon of Monocot seed
C	Epiblast	III	Groundnut
D	Perisperm	IV	Rudimentary cotyledon

Choose the option with all correct matches.

A

A-IV, B- III, C-I, D-II

B

A-II, B- IV, C-III, D-I

C

A-II, B- III, C-IV, D-I

D

A-IV, B- III, C-II, D-I

Question 14: Palette 14/133

NEET 2024 MCQ

Which part of the ovule stores reserve food materials?

A

Nucellus

B

Integument

C

Placenta

D

Funicle

Question 15: Palette 15/133

NEET 2024 MCQ

Pollen grains remain preserved as fossils due to the presence of :

A

Epidermal layer

B

Tapetum

C

Exine layer

D

Intine layer

Question 16: Palette 16/133

NEET 2024 MCQ

The part marked as ‘x’ in the given figure is

A

Endosperm

B

Thalamus

C

Endocarp

D

Mesocarp

Question 17: Palette 17/133

NEET 2024 MCQ

Identify the set of correct statements:

A. The flowers of Vallisneria are colourful and produce nectar.

B. The flowers of water lily are not pollinated by water.

C. In most of water-pollinated species, the pollen grains are protected from wetting.

D. Pollen grains of some hydrophytes are long and ribbon like.

E. In some hydrophytes, the pollen grains are carried passively inside water.

Choose the correct answer from the options given below.

A

C, D and E only

B

A, B, C and D only

C

A, C, D and E only

D

B, C, D and E only

Question 18: Palette 18/133

NEET 2024 MCQ

Identify the correct description about the given figure :

A

Wind pollinated plant inflorescence showing flowers with well exposed stamens.

B

Water pollinated flowers showing stamens with mucilaginous covering.

C

Cleistogamous flowers showing autogamy.

D

Compact inflorescence showing complete autogamy

Question 19: Palette 19/133

NEET 2023 MCQ

In which of the following sets of families, the pollen grains are viable for months?

A

Solanaceae, Poaceae and Liliaceae

B

Brassicaceae, Liliaceae and Poaceae

C

Rosaceae, Liliaceae and Poaceae

D

Leguminosae, Solanaceae and Rosaceae

Question 20: Palette 20/133

NEET 2023 MCQ

Transfer of pollen grains from anther to stigma of another flower of same plant is known as :

A

Geitonogamy

B

Xenogamy

C

Autogamy

D

Cleistogamy

Question 21: Palette 21/133

NEET 2023 MCQ

In angiosperms the correct sequence of events in formation of female gametophyte in the ovule is :

(A) 3 successive free nuclear divisions functional megaspore.

(B) Degeneration of 3 megaspores.

(C) Meiotic division in megaspore mother cell.

(D) Migration of 3 nuclei towards each pole.

(E) Formation of wall resulting in seven celled embryosac.

Choose the correct answer from the options given below :

A

(A), (B), (C), (D), (E)

B

(C), (E), (A), (D), (B)

C

(B), (C), (A), (D), (E)

D

(C), (B), (A), (D), (E)

Question 22: Palette 22/133

NEET 2023 MCQ

What is the function of tassels in the corn cob?

A

To trap pollen grains

B

To disperse pollen grains

C

To protect seeds

D

To attract insects

Question 23: Palette 23/133

NEET 2023 MCQ

Large, colourful, fragrant flowers with nectar are seen in

A

Bird pollinated plants

B

Bat pollinated plants

C

Wind pollinated plants

D

Insect pollinated plants

Question 24: Palette 24/133

NEET 2023 MCQ

In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :

A

Antipodals, synergids, and primary endosperm nucleus

B

Synergids, Zygote and Primary endosperm nucleus

C

Synergids, antipodals and Polar nuclei

D

Synergids, Primary endosperm nucleus and zygote

Question 25: Palette 25/133

NEET 2023 MCQ

Given below are two statements : One labelled as Assertion A and the other labelled as Reason R :

Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents.

Reason R : Air currents carry the pollen grains to the mouth of the archegonia where the male gametes are discharged and pollen tube is not formed.

In the light of the above statements, choose the correct answer from the options given below :

A

Both A and R are true but R is NOT the current explanation of A

B

A is true but R is false

C

A is false but R is true

D

Both A and R are true and R is the correct explanation of A

Question 26: Palette 26/133

NEET 2022 MCQ

The residual persistent part which forms the perisperm in the seeds of beet is

A

Integument

B

Calyx

C

Endosperm

D

Nucellus

Question 27: Palette 27/133

NEET 2022 MCQ

To ensure that only the desired pollens fall on the stigma in artificial hybridization process

(a) the female flower buds of plant producing unisexual flowers need not be bagged.

(b) there is no need to emasculate unisexual flowers of selected female parent

(c) emasculated flowers are to be bagged immediately after cross pollination

(d) emasculated flowers are to be bagged after removal of anthers

(e) bisexual flowers, showing protogyny are never selected for cross

Choose the correct answer from the options given belows

A

(a), (d) and (e) only

B

(a), (b) and (c) only

C

(b), (c) and (d) only

D

(b), (c) and (e) only

Question 28: Palette 28/133

NEET 2022 MCQ

In general the egg apparatus of embryo sac in angiosperm consists of

A

One egg cell, two synergids, two antipodal cells, two Polar nuclei

B

One egg cell, two synergids, three antipodal cells, two Polar nuclei

C

One egg cell, two synergids, two antipodal cells, three Polar nuclei

D

One egg cell, three synergids, two antipodal cells, two Polar nuclei

Question 29: Palette 29/133

NEET 2022 MCQ

Given below are two statements:

Statement I : Cleistogamous flowers are invariably autogamous

Statement II : Cleistogamy is disadvantageous as there is no chance for cross pollination

In the light of the above statements, choose the correct answer from the options given below :

A

Both Statement I and Statement II are correct

B

Both Statement I and Statement II are incorrect

C

Statement I is correct but Statement II is incorrect

D

Statement I is incorrect but Statement II is correct

Question 30: Palette 30/133

NEET 2022 MCQ

Identify the incorrect statement related to Pollination:

A

Pollination by water is quite rare in flowering plants

B

Pollination by wind is more common amongst abiotic pollination

C

Flowers produce foul odours to attract flies and beetles to get pollinated

D

Moths and butterflies are the most dominant pollinating agents among insects

Question 31: Palette 31/133

NEET 2021 MCQ

The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is :

A

Cleistogamy

B

Xenogamy

C

Geitonogamy

D

Chasmogamy

Question 32: Palette 32/133

NEET 2021 MCQ

Diadelphous stamens are found in

A

China rose and citrus

B

China rose

C

Citrus

D

Pea

Question 33: Palette 33/133

NEET 2021 MCQ

A typical angiosperm embryo sac at maturity is :

A

8-nucleate and 8-celled

B

8-nucleate and 7-celled

C

7-nucleate and 8-celled

D

7-nucleate and 7-celled

Question 34: Palette 34/133

NEET 2021 MCQ

In some members of which of the following pairs of families, pollen grains retain their viability for months after release?

A

Rosaceae : Leguminosae

B

Poaceae : Rosaceae

C

Poaceae : Leguminosae

D

Poaceae : Solanaceae

Question 35: Palette 35/133

NEET 2020 MCQ

The body of the ovule is fused within the funicle at

A

Chalaza

B

Hilum

C

Micropyle

D

Nucellus

Question 36: Palette 36/133

NEET 2020 MCQ

The plant parts which consist of two generations - one within the other
(i) Pollen grains inside the anther
(ii) Germinated pollen grain with two male gametes
(iii) Seed inside the fruit
(iv) Embryo sac inside the ovule

A

(i) and (iv)

B

(i) only

C

(i), (ii) and (iii)

D

(iii) and (iv)

Question 37: Palette 37/133

NEET 2019 MCQ

Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is :

A

Parietal

B

Free central

C

Basal

D

Axile

Question 38: Palette 38/133

NEET 2019 MCQ

Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?

A

Central cell develop into endosperm

B

Ovules develop into embryo sac

C

Ovary develops into fruit

D

Zygote develops into embryo

Question 39: Palette 39/133

NEET 2019 MCQ

What is the fate of the male gametes discharged in the synergid?

A

One fuses with the egg, other (s) fuse (s) with synergid nucleus.

B

One fuses with the egg and other fuses with central cell nuclei.

C

One fuses with the egg, other (s) degenerate (s) in the synergid.

D

All fuse with the egg.

Question 40: Palette 40/133

NEET 2019 MCQ

Pinus seed cannot germinate and establish without fungal association. This is because :

A

it has very hard seed coat

B

Its seed contain inhibitors that prevent germination

C

its embryo is immature

D

it has obligate association with mycorrhizae

Question 41: Palette 41/133

NEET 2019 MCQ

In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as :

A

Syngamy

B

Parthenocarpy

C

Parthenogenesis

D

Autogamy

Question 42: Palette 42/133

NEET 2019 MCQ

Persistent nucellus in the seed is known as

A

Hilum

B

Tegmen

C

Chalaza

D

Perisperm

Question 43: Palette 43/133

NEET 2018 MCQ

Double fertilization is

A

fusion of two male gametes of a pollen tube with two different eggs

B

fusion of one male gamete with two polar nuclei

C

fusion of two male gametes with one egg

D

syngamy and triple fusion

Question 44: Palette 44/133

NEET 2018 MCQ

Which of the following has proved helpful in preserving pollen as fossils?

A

Pollenkitt

B

Cellulosic intine

C

Oil content

D

Sporopollenin

Question 45: Palette 45/133

NEET 2018 MCQ

Winged pollen grains are present in

A

Mustard

B

Cycas

C

Mango

D

Pinus

Question 46: Palette 46/133

NEET 2017 MCQ

Attractants and rewards are required for

A

entromophily

B

hydrophily

C

cleistogamy

D

anemophily.

Question 47: Palette 47/133

NEET 2017 MCQ

Flowers which have single ovule in the ovary and are packed into inflorescence are usualy pollinated by

A

bee

B

wind

C

bat

D

water

Question 48: Palette 48/133

NEET 2017 MCQ

A dioecious flowering plant prevents both

A

autogamy and geitonogamy

B

geitonogamy and xenogamy

C

cleistogamy and xenogamy

D

autogamy and xenogamy.

Question 49: Palette 49/133

NEET 2017 MCQ

Functional megaspore in an angiosperm develops into an

A

endosperm

B

embryo sac

C

embryo

D

ovule.

Question 50: Palette 50/133

NEET 2017 MCQ

Double fertilisation is exhibited by

A

algae

B

fungi

C

angiosperms

D

gymnosperms.

Question 51: Palette 51/133

NEET 2016 MCQ

Pollination in water hyacinth and water lily is brought about by the agency of

A

water

B

insects or wind

C

birds

D

bats.

Question 52: Palette 52/133

NEET 2016 MCQ

In majority of angiosperms

A

egg has a filiform apparatus

B

there are numerous antipodal cells

C

reduction division occurs in the megaspore mother cells

D

a small central cell is present in that embryo sac.

Question 53: Palette 53/133

NEET 2016 MCQ

The ovule of an angiosperm is technically equivalent to

A

megasporangium

B

megasporophyll

C

megaspore mother cell

D

megaspore.

Question 54: Palette 54/133

NEET 2016 MCQ

Proximal end of the filament of stamen is attached to the

A

Placenta

B

thalamus or prtal

C

anther

D

connective.

Question 55: Palette 55/133

NEET 2016 MCQ

Which of the following statements is not correct?

A

Pollen germination and pollen tube growth are regulated by chemical componrnts of pollen interacting with those of the pistil.

B

Some reptiles have also been reported as pollinators in some plant species.

C

Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.

D

Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Question 56: Palette 56/133

NEET 2016 MCQ

Seed formation without fertilisation in flowering plants involves the process of

A

somatic hybridisation

B

apomixis

C

sporulation

D

budding.

Question 57: Palette 57/133

NEET 2016 MCQ

The coconut water from tender coconut represents

A

free nuclear proembryo

B

free nuclear endosperm

C

endocarp

D

fleshy mesocarp.

Question 58: Palette 58/133

NEET 2016 MCQ

Which one of the following statements is not true?

A

Pollen grains of many species cause severe allergies.

B

Stored pollen in liquid nitrogen can be used in the crop breeding programmes.

C

Tapetum helps in the dehiscence of anther.

D

Exine of pollen grains is made up of sporopollenin.

Question 59: Palette 59/133

NEET 2016 MCQ

Match Column-I with Column-II and select the correct option using the codes given below –

Column I	Column II
(a) Pistils fused together	(i) Gametogenesis
(b) Formation of gametes	(ii) Pistillate
(c) Hyphae of higher Ascomycetes	(iii) Syncarpous
(d) Unisexual female flower	(iv) Dikaryotic

A

(a) - (iii), (b) - (i), (c) - (ii), (d) - (iv)

B

(a) - (iii), (b) - (iv), (c) - (i), (d) - (ii)

C

(a) - (iii), (b) - (i), (c) - (iv), (d) - (ii)

D

(a) - (i), (b) - (iv), (c) - (ii), (d) - (iii)

Question 60: Palette 60/133

NEET 2015 MCQ

Male gametophyte in angiosperms produces

A

single sperm and two vegetative cells

B

three sperms

C

two sperms and a vegetative cell

D

single sperm and a vegetative cell.

Question 61: Palette 61/133

NEET 2015 MCQ

Flowers are unisexual in

A

China rose

B

onion

C

pea

D

cucumber.

Question 62: Palette 62/133

NEET 2015 MCQ

Coconut water from a tender coconut is

A

innermost layers of the seed coat

B

degenerated nucellus

C

immature embryo

D

free nuclear endosperm.

Question 63: Palette 63/133

NEET 2015 MCQ

Filiform apparatus is characteristic feature of

A

aleurone cell

B

synergids

C

generative cell

D

nucellar embryo.

Question 64: Palette 64/133

NEET 2015 MCQ

Which one of the following fruits is parthenocarpic?

A

Jackfruit

B

Banana

C

Brinjal

D

Apple

Question 65: Palette 65/133

NEET 2015 MCQ

In angiosperms, microsporogenesis and mega-sporogenesis

A

involve meiosis

B

occur in ovule

C

occur in anther

D

form gametes without further divisions.

Question 66: Palette 66/133

NEET 2015 MCQ

Transmission tissue is characteristic feature of

A

dry stigma

B

wet stigma

C

hollow style

D

solid style.

Question 67: Palette 67/133

NEET 2015 MCQ

Which one of the following statements is not true?

A

The flowers pollinated by files and bats secrete foul odour to attract them.

B

Honey is made by bees by digesting pollen collected from flowers.

C

Pollen grains are rich in nutrients and they are used in the form of tablets and syrups.

D

Pollen grains of some plants cause severe allergies and bronchial afflictions in some people.

Question 68: Palette 68/133

NEET 2015 MCQ

Which of the following are the important floral rewards to the animal pollinators ?

A

Floral fragrance and calcium crystals

B

Protein pellicle and stigmatic exudates

C

Colour and large size of flower

D

Nectar and pollen grains

Question 69: Palette 69/133

NEET 2015 MCQ

The hilum is a scar on the

A

seed, where funicle was attached

B

fruit, where style was present

C

fruit, where it was attached to pedicel

D

seed, where micropyle was present

Question 70: Palette 70/133

NEET 2015 MCQ

Which one of the following may require pollinators, but is genetically similar to autogamy?

A

Apogamy

B

Cleistogamy

C

Geitonogamy

D

Xenogamy

Question 71: Palette 71/133

NEET 2014 MCQ

Non-albuminous seed is produced in

A

maize

B

castor

C

wheat

D

pea.

Question 72: Palette 72/133

NEET 2014 MCQ

Function of filiform apparatus is to

A

recognize the suitable pollen at stigma

B

stimulate division of generative cell

C

produce nectar

D

guide the entry of pollen tube.

Question 73: Palette 73/133

NEET 2014 MCQ

Pollen tablets are available in the market for

A

in vitro fertilization

B

breeding programmes

C

supplementing food

D

ex situ conservation.

Question 74: Palette 74/133

NEET 2014 MCQ

Geitonogamy involves

A

fertilization of a flower by the pollen from another flower of the same plant

B

fertilization of a flower by the pollen from the same flower

C

fertilization of a flower by the pollen from a flower of another plant in the same population

D

fertilization of a flower by the pollen from a flower of another plant belonging to a distant population.

Question 75: Palette 75/133

NEET 2014 MCQ

An aggregate fruit is one which develops from

A

multicarpellary syncarpous gynoecium

B

multicarpellary apocarpus gynoecium

C

complete inflorescence

D

multicarpellary superior ovary.

Question 76: Palette 76/133

NEET 2014 MCQ

Which one of the following shows isogamy with non-flagellated gametes?

A

Sargassum

B

Ectocarpus

C

Ulothrix

D

Spirogyra

Question 77: Palette 77/133

NEET 2013 MCQ

Megaspores are produced from the megaspore mother cells after

A

mitotic division

B

formation of thick wall

C

differentiation

D

meiotic division.

Question 78: Palette 78/133

NEET 2013 MCQ

Which of the following statements is correct?

A

Sporopollenin can be degraded by enzymes.

B

Sporopollenin is made up of inorganic materials.

C

Sporopollenin can withstand high temperatures as well as strong acids and alkalis.

D

Sporopollenin can withstand high temperatures but not strong acids.

Question 79: Palette 79/133

NEET 2013 MCQ

Which one of the following statements is correct?

A

Cleistogamous flowers are always autogamous.

B

Xenogamy occurs only by wind pollination.

C

Chasmogamous flowers do not open at all.

D

Geiotonogamy involves the pollen and stigma of flowers of different plants.

Question 80: Palette 80/133

NEET 2013 MCQ

Albuminous seeds store their reserve food mainly in

A

endosperm

B

cotyledons

C

hypocotyl

D

perisperm.

Question 81: Palette 81/133

NEET 2013 MCQ

Animal vectors are required for pollination in

A

Vallisneria

B

mulberry

C

cucumber

D

maize.

Question 82: Palette 82/133

NEET 2013 MCQ

Perisperm differs from endosperm in

A

being a diploid tissue

B

its formation by fusion of secondary nucleus with several sperms

C

being a haploid tissue

D

having no reserve food.

Question 83: Palette 83/133

NEET 2013 MCQ

Advantage of cleistogamy is

A

no dependence on pollinators

B

vivipary

C

higher genetic variability

D

more vigorous offsprins.

Question 84: Palette 84/133

NEET 2013 MCQ

Megasporangium is equivalent to

A

nucellus

B

ovule

C

embryo sac

D

fruit.

Question 85: Palette 85/133

NEET 2013 MCQ

Seed coat is not thin, membranous in

A

groundnut

B

gram

C

maize

D

coconut.

Question 86: Palette 86/133

NEET 2013 MCQ

Which one of the following statements is correct?

A

Endothecium produces the microspores.

B

Tapetum nourishes the developing pollen.

C

Hard outer layer of pollen is called intine.

D

Sporogenous tissue is haploid.

Question 87: Palette 87/133

NEET 2013 MCQ

Product of sexual reproduction generally generates

A

new genetic combination leading to variation

B

large biomass

C

longer viability of seeds

D

prolonged dormancy.

Question 88: Palette 88/133

NEET 2013 MCQ

Meiosis takes place in

A

gemmule

B

megaspore

C

meiocyte

D

conidia.

Question 89: Palette 89/133

NEET 2012 MCQ

What is the function of germ pore?

A

Emergence of radicle

B

Absorption of water for seed germination

C

Initiation of pollen tube

D

Release of male gametes

Question 90: Palette 90/133

NEET 2012 MCQ

Plants with ovaries having only one or a few ovules, are generally pollinated by

A

bees

B

butterflies

C

birds

D

wind.

Question 91: Palette 91/133

NEET 2012 MCQ

Which one of the following statements is wrong?

A

When pollen is shed at two-celled stage, double fertilization does not take place.

B

Vegetative cell is larger than generative cell.

C

Pollen grains in some plants remain viable for months.

D

Intine is made up of cellulose and pectin.

Question 92: Palette 92/133

NEET 2012 MCQ

Even in absence of pollinating agents seed-setting is assured in

A

Commelina

B

Zostera

C

Salvia

D

fig.

Question 93: Palette 93/133

NEET 2012 MCQ

Both, autogamy and geitonogamy are prevented in

A

Papaya

B

cucumber

C

castor

D

maize.

Question 94: Palette 94/133

NEET 2012 MCQ

Which one of the following is correctly matched?

A

Onion$-$Bulb

B

Ginger$-$Sucker

C

Chlamydomonas$-$Conidia

D

Yeast$-$Zoospores

Question 95: Palette 95/133

NEET 2012 MCQ

An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is

A

cuticle

B

sporopollenin

C

lignin

D

cellulose.

Question 96: Palette 96/133

NEET 2011 MCQ

In angiosperms, functional megaspore develops into

A

embryo sac

B

ovule

C

endosperm

D

pollen sac.

Question 97: Palette 97/133

NEET 2011 MCQ

What is common between vegetative reproduction and apomixts?

A

Both are applicable to only dicot plants

B

Both bypass the flowering phase

C

Both occur round the year

D

Both produced progeny identical to the parent.

Question 98: Palette 98/133

NEET 2011 MCQ

Wind pollination is common in

A

legumes

B

lilies

C

grasses

D

orchids.

Question 99: Palette 99/133

NEET 2011 MCQ

Nucellar polyembryony is reported in species of

A

Citrus

B

Gossypium

C

Triticum

D

Brassica.

Question 100: Palette 100/133

NEET 2011 MCQ

Which one of the following pollinations is autogamous?

A

Geitonogamy

B

Xenogamy

C

Chasmogamy

D

Cleistogamy

Question 101: Palette 101/133

NEET 2011 MCQ

The ''eyes'' of the potato tuber are

A

root buds

B

flower buds

C

shoot buds

D

axillary buds.

Question 102: Palette 102/133

NEET 2011 MCQ

Filiform apparatus is a characteristic feature of

A

suspensor

B

egg

C

synergid

D

zygote.

Question 103: Palette 103/133

NEET 2010 MCQ

Vegetative propagation in Pistia occurs by

A

stolon

B

offset

C

runner

D

sucker.

Question 104: Palette 104/133

NEET 2010 MCQ

Examine the figures (A-D) given below and select the right option out of (a – d), in which all the four structures A, B, C and D are identified correctly.

A

A $ \to $ offset, B $ \to $ Antheridiophore, C $ \to $ Antipodals, D $ \to $ Oogonium

B

A $ \to $ Rhizome, B $ \to $ Sporangiophore, C $ \to $ Polar cell, D $ \to $ Globule

C

A $ \to $ Sucker, B $ \to $ Seta, C $ \to $ Megaspore mother cell , D $ \to $ Gemma cup

D

A $ \to $ Runner, B $ \to $ Archegoniophore, C $ \to $ Synergidl, D $ \to $ Antheridium

Question 105: Palette 105/133

NEET 2010 MCQ

Apomictic embryos in Citrus arise form

A

synergids

B

maternal sporophytic tissue in ovule

C

antipodal cells

D

diploid egg.

Question 106: Palette 106/133

NEET 2010 MCQ

Transfer of pollen grains from the another to the stigma of another flower of the same plant is called

A

xenogamy

B

geitonogamy

C

karyogami

D

autogamy.

Question 107: Palette 107/133

NEET 2010 MCQ

Wind pollinated flowers are

A

small, brightly coloured, producing large number of pollen grains

B

small, producing large number of dry pollen grains

C

large producing abundant nectar and pollen

D

small, producing nectar and dry pollen.

Question 108: Palette 108/133

NEET 2009 MCQ

Vegetative propagation in mint occurs by

A

offset

B

rhizome

C

sucker

D

runner.

Question 109: Palette 109/133

NEET 2008 MCQ

What does the filiform apparatus do at the entrance into ovule?

A

In brings about opening of the pollen tube.

B

It guides pollen tube from a synergid to egg.

C

It helps in the entry of pollen tube into a synergid.

D

It prevents entry of more than one pollen tuve into the embryo sac.

Question 110: Palette 110/133

NEET 2008 MCQ

Unisexuality of flowers prevents

A

geitonogamy, but not xenogamy

B

autogamy and geitonogamy

C

autogamy, but not geitonogamy

D

both geitonogamy and xenogamy.

Question 111: Palette 111/133

NEET 2008 MCQ

Which one of the following pairs of plant structures has haploid number of chromosomes ?

A

Nucellus and antipodal cells

B

Egg nucleus and secondary nucleus

C

Megaspore mother cell and antipodal cells

D

Egg cell and antipodal cells

Question 112: Palette 112/133

NEET 2008 MCQ

Which one of the following is resistant to enzyme action?

A

Pollen exine

B

Leaf cuticle

C

Cork

D

Wood fibre

Question 113: Palette 113/133

NEET 2007 MCQ

Two plants can be conclusively said to belong to the same species if they

A

have more than 90 percent similar genes

B

look similar and possess identical secondary metabolites

C

have same number of chromosomes

D

can reproduce freely with each other and form seeds.

Question 114: Palette 114/133

NEET 2007 MCQ

Which one of the following is surrounded by a callose wall?

A

Male gamete

B

Egg

C

Pollen grain

D

Microspore mother cell

Question 115: Palette 115/133

NEET 2007 MCQ

Male gametes in angiosperms are formed by the division of

A

generative cell

B

vegetative cell

C

microspore mother cell

D

microspore.

Question 116: Palette 116/133

NEET 2006 MCQ

The arrangement of the nuclei in a normal embryo sac in the dicot plants is

A

3 + 3 +2

B

2 + 4 + 2

C

3 + 2 + 3

D

2 + 3 + 3

Question 117: Palette 117/133

NEET 2006 MCQ

Parthenocarpic tomato fruits can be produced by

A

treating the plants with phenylmercuric acetate

B

removing androcium of flowers before pollen grains are released

C

treating the plants with low concentrations of gibberellic acid and auxins

D

raising the plants from vernalized seeds.

Question 118: Palette 118/133

NEET 2006 MCQ

In a cereal grain the single cotyledon of embryo is represented by

A

coleoptile

B

coleorhiza

C

scutellum

D

prophyll.

Question 119: Palette 119/133

NEET 2005 MCQ

In a type of apomixis known as advice embryony, embryos develop directly from the

A

nucellus or integuments

B

zygote

C

synergids or antipodals in an embryo sac

D

accessory embryo sacs in the ovule.

Question 120: Palette 120/133

NEET 2005 MCQ

Through which cell of the embryo sac, does the pollen tube enter the embryo sac?

A

Egg cell

B

Persistant synergid

C

Degenerated synergids

D

Central cell

Question 121: Palette 121/133

NEET 2005 MCQ

Which one of the following represents an ovule, where the embryo sac becomes horse-shoe shaped and the funiculus and micropyle are close to each other?

A

Amphitropous

B

Circinotropous

C

Atropous

D

Anatropous

Question 122: Palette 122/133

NEET 2004 MCQ

An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is

A

hemitropous

B

campylotropous

C

anatropous

D

orthotropous.

Question 123: Palette 123/133

NEET 2004 MCQ

Anthesis is a phenomenon which refers to

A

reception of pollen by stigma

B

formation of pollen

C

development of anther

D

opening of flower bud.

Question 124: Palette 124/133

NEET 2004 MCQ

When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is

A

tetraploidy

B

pentaploidy

C

diploidy

D

triploidy

Question 125: Palette 125/133

NEET 2003 MCQ

In a flowering plant, archesporium gives rise to

A

only the wall of the spoeangium

B

both wall and the sporogenous cells

C

wall and the tapetum

D

only tapetum and sporogenous cells.

Question 126: Palette 126/133

NEET 2002 MCQ

What is the direction of micropyle in anatropous ovule?

A

Upwards

B

Downward

C

Right

D

Left

Question 127: Palette 127/133

NEET 2002 MCQ

In angiosperm all the four microspores of tetrad are covered by a layer which is formed by

A

pectocellulose

B

callose

C

cellulose

D

sporopollenin.

Question 128: Palette 128/133

NEET 2002 MCQ

In angiosperms pollen tube liberate their male gametes into the

A

central cell

B

antipodal cells

C

egg cell

D

synergids.

Question 129: Palette 129/133

NEET 2001 MCQ

Anemophily type of pollination is found in

A

Salvia

B

bottle brush

C

Vallisneria

D

coconut.

Question 130: Palette 130/133

NEET 2001 MCQ

In grasses what happens in microspore mother cell for the formation of mature pollen grains?

A

One meiotic and two mitotic divisions

B

One meiotic and one mitotic divisions

C

One meiotic

D

One Mitotic division

Question 131: Palette 131/133

NEET 2001 MCQ

Adventive embryony in Citrus is due to

A

nucellus

B

integuments

C

zygotic embryo

D

fertilized egg.

Question 132: Palette 132/133

NEET 2000 MCQ

Eight nucleated embryo sac is

A

only monosporic embryo sac is

B

only bisporic

C

only tetrasporic

D

any of these.

Question 133: Palette 133/133

NEET 2000 MCQ

Endosperm is formed during the double fertilization by

A

two polar nuclei and one male gamete

B

one polar nuclei and one male gamete

C

ovum and male gamete

D

two polar nuclei and two male gametes.