Updated for NEET 2025 | Based on NCERT Class 12 Biology
If you're preparing for NEET and looking to master Chapter 1 – Sexual Reproduction in Flowering Plants, this article gives you 90 high-quality MCQs strictly based on the NCERT Biology textbook. Practice these questions to sharpen your concepts and boost your exam score.
🌿 Importance of This Chapter in NEET
- 2–3 direct questions are usually asked from this chapter.
- It includes high-weightage concepts like microsporogenesis, megasporogenesis, double fertilization, and post-fertilization events.
- NEET paper setters often frame tricky questions from NCERT lines of this chapter.
🧪 90 NEET MCQs – Sexual Reproduction in Flowering Plants
Section A: Flower Structure, Anther and Microsporogenesis (Q.1–30)
-
Microsporogenesis is the process of: A. Formation of megaspores
B. Formation of microspores from microspore mother cells
C. Fertilization in flowers
D. Development of embryo -
Pollen mother cells are: A. Haploid and divide by mitosis
B. Diploid and divide by meiosis
C. Diploid and divide by mitosis
D. Haploid and divide by meiosis -
Which of the following layers of anther wall provides nourishment to developing pollen grains? A. Endothecium
B. Tapetum
C. Middle layers
D. Epidermis -
Exine of pollen grain is composed of: A. Cellulose
B. Pectin
C. Sporopollenin
D. Lignin -
Intine of pollen grain is made up of: A. Sporopollenin
B. Pectin and cellulose
C. Lipids
D. Lignin -
Which is the innermost wall layer of microsporangium? A. Endothecium
B. Middle layers
C. Tapetum
D. Epidermis -
A bilobed anther has _______ microsporangia. A. 1
B. 2
C. 3
D. 4 -
What is the ploidy of the microspore mother cell? A. Haploid
B. Triploid
C. Diploid
D. Tetraploid -
Which of the following degenerates during pollen maturation? A. Tapetum
B. Middle layers
C. Exine
D. Intine -
Pollen viability refers to: A. Time required for pollen to reach stigma
B. Ability of pollen to fertilize egg
C. Production of pollen
D. Storage capacity of pollen -
Germ pores are: A. Thin exine regions
B. Openings in tapetum
C. Sites of fertilization
D. Absent in pollen grains -
Which layer helps in dehiscence of anther? A. Tapetum
B. Endothecium
C. Epidermis
D. Intine -
Sporogenous tissue develops into: A. Ovule
B. Pollen mother cells
C. Tapetum
D. Endothecium -
The development of pollen grain from microspore is: A. Meiotic
B. Mitotic
C. Synapsis
D. Reductional -
Pollen grains can cause: A. Asthma and respiratory allergy
B. Cancer
C. Tuberculosis
D. Eye infection -
The structure formed after meiosis of microspore mother cell is: A. Pollen grain
B. Tetrad of microspores
C. Megaspore
D. Nucellus -
Pollenkitt is secreted by: A. Epidermis
B. Tapetum
C. Endothecium
D. Middle layer -
Exine has: A. DNA
B. Cytoplasm
C. Sporopollenin
D. Protein -
Which wall layer of the anther becomes fibrous and helps in dehiscence? A. Epidermis
B. Endothecium
C. Tapetum
D. Middle layer -
The anther is attached to the filament by: A. Connective
B. Stigma
C. Style
D. Ovary -
The first division in microspore results in: A. Two equal vegetative cells
B. Two unequal cells – vegetative and generative
C. Two generative cells
D. Three nuclei -
Which cell in pollen grain forms the pollen tube? A. Generative cell
B. Vegetative cell
C. Zygote
D. Endosperm -
Mature pollen grain is: A. Unicellular
B. Bicellular or tricellular
C. Acellular
D. Trinucleate only -
Which is a feature of pollen grains used in artificial pollination? A. Viable
B. Trinucleate
C. Heavy
D. Sticky -
Which part of flower produces pollen? A. Carpel
B. Ovary
C. Anther
D. Petal -
Formation of pollen grain inside the anther is called: A. Microsporogenesis
B. Megasporogenesis
C. Embryogenesis
D. Fertilization -
What is the function of callose wall in PMC? A. Protection during meiosis
B. Nutrition
C. Pollination
D. Stigma formation -
Tricellular pollen grains are found in: A. Mustard
B. Wheat
C. Cotton
D. Both A and C -
The pollen tube emerges through: A. Hilum
B. Germ pore
C. Exine rupture
D. Nucellus -
Which hormone increases pollen viability in storage? A. Cytokinin
B. Ethylene
C. Gibberellin
D. Abscisic acid
Section B: Pollination and Fertilization (Q.31–60)
-
Transfer of pollen from anther to stigma of the same flower is called: A. Xenogamy
B. Geitonogamy
C. Autogamy
D. Cross-pollination -
Which of the following is a biotic pollinating agent? A. Wind
B. Water
C. Bee
D. Gravity -
Pollination in Vallisneria occurs through: A. Wind
B. Water
C. Insects
D. Birds -
Which promotes autogamy? A. Dichogamy
B. Cleistogamy
C. Herkogamy
D. Geitonogamy -
Pollination between two different flowers on the same plant is: A. Autogamy
B. Xenogamy
C. Geitonogamy
D. Herkogamy -
Pollen–pistil interaction occurs during: A. Fertilization
B. Pollination
C. Germination of pollen on stigma
D. Seed formation -
Pollen tube grows towards: A. Ovule through chalaza
B. Stigma through style to ovule
C. Anther
D. Ovary through leaf -
Double fertilization is: A. Fertilization of two eggs
B. Fusion of male gamete with egg and another with central cell
C. Two sperms fusing with one egg
D. Fusion of two female gametes -
Central cell + male gamete gives rise to: A. Embryo
B. Egg cell
C. Endosperm
D. Synergid -
Entry of pollen tube into ovule through micropyle is: A. Mesogamy
B. Porogamy
C. Chalazogamy
D. Cleistogamy -
Which event does not occur during pollination? A. Entry of pollen tube
B. Adhesion of pollen grain
C. Recognition of pollen
D. Fusion of male and female gametes -
Endosperm in angiosperms is: A. Haploid
B. Diploid
C. Triploid
D. Tetraploid -
Which of the following is an outbreeding device? A. Cleistogamy
B. Dichogamy
C. Syncarpy
D. Bisexuality -
Pollination in maize is: A. Entomophily
B. Anemophily
C. Hydrophily
D. Zoophily -
Synergids help in: A. Fertilization
B. Guiding pollen tube
C. Embryo nourishment
D. Fruit formation -
Antipodals are: A. Triploid
B. Diploid
C. Haploid
D. Tetraploid -
Egg apparatus includes: A. One egg and two antipodals
B. One egg and two synergids
C. Two synergids only
D. Three antipodals -
Which part degenerates after fertilization? A. Egg
B. Ovary
C. Petals
D. Zygote -
Number of nuclei in mature embryo sac: A. 3
B. 6
C. 7
D. 8 -
Ovary converts into: A. Ovule
B. Endosperm
C. Fruit
D. Embryo
Certainly! Let's complete the article with the remaining MCQs (51–90) and the full answer key
-
Ovule after fertilization develops into:
A. Fruit
B. Endosperm
C. Seed
D. Cotyledon -
Zygote gives rise to:
A. Endosperm
B. Embryo
C. Fruit
D. Ovary -
Triple fusion involves fusion of:
A. One male gamete and one egg
B. Two male gametes and one egg
C. One male gamete and two polar nuclei
D. Two polar nuclei only -
Primary endosperm nucleus is:
A. Diploid
B. Triploid
C. Haploid
D. Tetraploid -
Which of the following helps in double fertilization?
A. Pollen grain
B. Synergid
C. Antipodal
D. Pollen tube -
A characteristic feature of angiosperms is:
A. Autogamy
B. Double fertilization
C. Dicliny
D. Dichogamy -
Degeneration of synergids occurs:
A. Before fertilization
B. After fertilization
C. During double fertilization
D. Before pollination -
In a typical dicot seed, cotyledons are:
A. Protective
B. Photosynthetic
C. Storage organs
D. Absorptive -
Albuminous seeds retain:
A. Endosperm
B. Cotyledons
C. Testa
D. Radicle -
Perisperm is:
A. Degenerated embryo
B. Persistent nucellus
C. Persistent endosperm
D. Embryo sac -
Non-albuminous seeds are found in:
A. Wheat
B. Castor
C. Maize
D. Pea -
Which of the following is a monocot seed?
A. Pea
B. Castor
C. Mustard
D. Maize -
Which layer of seed coat is formed from outer integument?
A. Tegmen
B. Testa
C. Aleurone
D. Endosperm -
Plumule forms:
A. Root
B. Shoot
C. Leaf
D. Seed coat -
Seed dormancy is advantageous for:
A. Dispersal
B. Germination
C. Survival
D. Growth -
Apomixis results in:
A. Hybrid seed
B. Vegetative propagation
C. Seed without fertilization
D. Clonal seed -
Parthenocarpy leads to formation of:
A. Fertile fruit
B. Seedless fruit
C. Hybrid seed
D. Zygotic embryo -
In adventive embryony, embryo arises from:
A. Egg
B. Synergid
C. Nucellus or integuments
D. Endosperm -
Polyembryony was discovered by:
A. Linnaeus
B. Maheshwari
C. Leeuwenhoek
D. Swaminathan -
Vegetative propagation through seeds occurs in:
A. Sexual reproduction
B. Parthenogenesis
C. Apomixis
D. Polyploidy -
Seeds produced by apomixis are:
A. Heterozygous
B. Recombinant
C. Identical to parent
D. Triploid -
In citrus, polyembryony is due to:
A. Parthenocarpy
B. Adventive embryony
C. Apogamy
D. Cleistogamy -
Zygote divides only after:
A. Ovule formation
B. Fertilization
C. Endosperm development starts
D. Seed coat formation -
In dicots, endosperm is:
A. Persistent
B. Absent at maturity
C. Triploid and nutritive
D. All of these -
The outer covering of monocot seed is:
A. Aleurone layer
B. Testa
C. Seed coat
D. Endosperm -
Cotyledon in monocots is called:
A. Scutellum
B. Coleoptile
C. Plumule
D. Tegmen -
The role of coleoptile is to:
A. Absorb water
B. Protect radicle
C. Protect plumule
D. Store food -
The role of coleorhiza is to:
A. Protect cotyledon
B. Protect radicle
C. Form endosperm
D. Produce hormones -
Hybrid seeds must be produced every year because:
A. They don’t germinate
B. Vigour is lost in next generation
C. They are polyploid
D. They are sterile -
In papaya, male and female flowers occur on separate plants. This condition is called:
A. Monoecious
B. Hermaphrodite
C. Dioecious
D. Unisexual -
Which one ensures fertilization even in absence of pollinators?
A. Apomixis
B. Cleistogamy
C. Parthenocarpy
D. Hybridisation -
The structure which develops into root is:
A. Plumule
B. Cotyledon
C. Epicotyl
D. Radicle -
Viability of seed refers to:
A. Duration of germination
B. Ability to grow under sunlight
C. Ability to germinate
D. Photosynthetic efficiency -
Which is a monocot non-albuminous seed?
A. Maize
B. Castor
C. Wheat
D. Orchid -
Most preferred method of hybrid seed production:
A. Cloning
B. Cleistogamy
C. Artificial pollination
D. Apomixis -
Which part of embryo gives rise to shoot system?
A. Radicle
B. Plumule
C. Cotyledon
D. Coleoptile -
Genetic identity of apomictic seed is:
A. Recombinant
B. Different from mother
C. Clone of mother
D. Triploid -
Micropyle in seed remains as:
A. Water entry point
B. Exit point for embryo
C. Germ pore
D. Pollen tube exit -
Persistent endosperm is found in:
A. Mustard
B. Groundnut
C. Castor
D. Pea -
Function of scutellum is:
A. Absorption of nutrients from endosperm
B. Protection of embryo
C. Photosynthesis
D. Germination of radicle
✅ NEET MCQ Answer Key (Q.1–90)
| Qs | Ans | Qs | Ans | Qs | Ans |
|---|---|---|---|---|---|
| 1 | B | 2 | B | 3 | B |
| 4 | C | 5 | B | 6 | C |
| 7 | D | 8 | C | 9 | B |
| 10 | B | 11 | A | 12 | B |
| 13 | B | 14 | B | 15 | A |
| 16 | B | 17 | B | 18 | C |
| 19 | B | 20 | A | 21 | B |
| 22 | B | 23 | B | 24 | A |
| 25 | C | 26 | A | 27 | A |
| 28 | D | 29 | B | 30 | D |
| 31 | C | 32 | C | 33 | B |
| 34 | B | 35 | C | 36 | C |
| 37 | B | 38 | B | 39 | C |
| 40 | B | 41 | D | 42 | C |
| 43 | B | 44 | B | 45 | B |
| 46 | C | 47 | B | 48 | C |
| 49 | D | 50 | C | 51 | C |
| 52 | B | 53 | C | 54 | B |
| 55 | D | 56 | B | 57 | C |
| 58 | C | 59 | A | 60 | B |
| 61 | D | 62 | D | 63 | B |
| 64 | B | 65 | C | 66 | C |
| 67 | B | 68 | C | 69 | C |
| 70 | C | 71 | C | 72 | B |
| 73 | C | 74 | D | 75 | C |
| 76 | A | 77 | C | 78 | B |
| 79 | B | 80 | C | 81 | B |
| 82 | D | 83 | C | 84 | D |
| 85 | D | 86 | B | 87 | C |
| 88 | A | 89 | C | 90 | A |
These 90 NEET MCQs from the chapter Sexual Reproduction in Flowering Plants are designed to match the difficulty level of the NEET exam and follow the NCERT Class 12 textbook. Practice regularly, analyze your mistakes using the answer key, and revise thoroughly to boost your score.
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