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Sexual Reproduction in Flowering Plants MCQs for NEET — Botany Questions with Answers

Practice free Sexual Reproduction in Flowering Plants (Botany) NEET multiple-choice questions online with instant answers and detailed explanations. No login required.

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What is the primary difference between typical sexual reproduction and apomixis concerning seed formation?

A. Gametophyte development B. Presence or absence of fertilization C. Embryo development D. Seed dispersal mechanism

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Explanation

The text clearly states, 'Although seeds, in general are the products of fertilisation, a few flowering plants... have evolved a special mechanism, to produce seeds without fertilisation, called apomixis.' This highlights the absence of fertilization as the key distinction.

NEET 2023

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

A. Synergids, Primary endosperm nucleus and zygote B. Antipodals, synergids, and primary endosperm nucleus C. Synergids, Zygote and Primary endosperm nucleus D. Synergids, antipodals and Polar nuclei

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Explanation

Synergids (n) — Zygote (2n) — PEN (3n). Sequence: haploid, diploid, triploid.

NEET 2023

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What is the function of tassels in the corn cob?

A. To attract insects B. To trap pollen grains C. To disperse pollen grains D. To protect seeds

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Explanation

Tassels are the male inflorescence; they release/disperse pollen. (NEET key.)

NEET 2023

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Large, colourful, fragrant flowers with nectar are seen in:

A. insect pollinated plants B. bird pollinated plants C. bat pollinated plants D. wind pollinated plants

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Explanation

Entomophilous (insect-pollinated) flowers are large, brightly coloured and fragrant.

NEET 2024

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Identify the set of correct statements:

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

B. The flowers of waterlily 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. B, C, D and E only B. C, D and E only C. A, B, C and D only D. A, C, D and E only

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Explanation

Vallisneria flowers are small, dull and do not produce nectar (A wrong). Waterlily is insect-pollinated despite being aquatic (B correct). C, D, E are standard NCERT facts.

NEET 2024

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Identify the correct description about the given figure (an elongated spike-like inflorescence with prominently exposed stamens):

A. Compact inflorescence showing complete autogamy. B. Wind pollinated plant inflorescence showing flowers with well exposed stamens. C. Water pollinated flowers showing stamens with mucilaginous covering. D. Cleistogamous flowers showing autogamy.

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Explanation

Exposed, light, plumose stamens are characteristic of wind-pollinated (anemophilous) inflorescences.

NEET 2025

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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.

Choose the correct answer:

A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is NOT the correct explanation of A C. A is true but R is false D. A is false but R is true

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Explanation

Both statements are true facts about abiotic pollination, but producing abundant pollen is not the reason flowers lack colour/nectar — so R does not explain A.

NEET 2025

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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.

Choose the correct answer:

A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is NOT the correct explanation of A C. A is true but R is false D. A is false but R is true

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Explanation

The mature embryo sac is indeed 8-nucleate and 7-celled (A true). The egg apparatus consists of one egg and two synergids; the two polar nuclei lie in the central cell, not the egg apparatus, so R is false.

NEET 2025

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Match List I with List II:

List I — A. Scutellum, B. Non-albuminous seed, C. Epiblast, D. Perisperm

List II — I. Persistent nucellus, II. Cotyledon of Monocot seed, III. Groundnut, IV. Rudimentary cotyledon

Choose the option with all correct matches:

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

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Explanation

Scutellum → cotyledon of a monocot seed (II); Non-albuminous seed → groundnut (III); Epiblast → rudimentary cotyledon (IV); Perisperm → persistent nucellus (I).

NEET 2025

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Given below are two statements: one is labelled as Assertion (A) and the 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.

Choose the correct answer:

A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is NOT the correct explanation of A C. A is true but R is false D. A is false but R is true

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Explanation

The tapetum nourishes developing pollen; its cells have dense cytoplasm and are multinucleate, which raises their nourishing efficiency — R correctly explains A.

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