Here you will find NEET MCQ questions on the Class 12 Biology Chapter “Sexual Reproduction in Flowering Plants” based on the NCERT textbook. Solve the below free NEET mock test for a better understanding of the various topics. 100+ important MCQs (multiple choice questions) are given in this NEET question bank.
Sexual Reproduction in Flowering Plants is the second chapter in the unit “Reproduction” of class XII or class 12th Biology NCERT. Do note that NEET (which is conducted by NTA) is based on NCERT books so they are a must have. You can also download the PDF of NCERT textbooks.
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- Plant embryo develops from
(a) seed
(b) Fruit
(c) Zygote
(d) Flower
(c) Zygote
- Embryo of flowering plant is always
(a) Haploid (n)
(b) Diploid (2n)
(c) Triploid (3n)
(d) Tetraploid (4n)
(b) Diploid (2n)
- Plant embryo is a mass of
(a) Cells
(b) Uncertain tissue
(c) Collection of plant tissues
(d) Miniature plant
(d) Miniature plant
- Stamen is a modification of
(a) Leaf
(b) Microsporophyll
(c) Megasporophyll
(d) Shoot
(b) Microsporophyll
- Zygote is formed inside the
(a) Stigma
(b) Style
(c) Female gametophyte
(d) Seed
(c) Female gametophyte
- A microspore is a
(a) Male gamete
(b) First cell of male gametophyte
(c) Last cell of male gametophyte
(d) Diploid cell
(b) First cell of male gametophyte
- An anther consists of
(a) one microsporangium
(b) four microsporangia
(c) Two microsporangia
(d) many microsporangia
(b) four microsporangia
- Cells of nucellus are always
(a) Haploid
(b) Triploid
(c) Diploid
(d) Enucleated
(c) Diploid
- The embryo sac is produced from
(a) Microscope
(b) Zygote
(c) Egg cell
(d) Megaspore
(d) Megaspore
- An egg apparatus contains
(a) An egg + two antipodals
(b) An egg + Secondary nucleus
(c) An egg + Two synergids
(d) Antipodal cell + synergid
(c) An egg + Two synergids
- In angiosperm the endosperm nucleus is
(a) Triploid
(b) Diploid
(c) Tetraploid
(d) Haploid
(a) Triploid
- Female gametophyte is also known as
(a) ovule
(b) egg-apparatus
(c) Nucellus
(d) Embryo sac
(d) Embryo sac
- Embryo sac contains
(a) 3 eggs
(b) 2 eggs
(c) 1 egg
(d) 4 eggs
(c) 1 egg
- Carpel is formed of
(a) Two parts
(b) Three parts
(c) Four parts
(d) Seven parts
(b) Three parts
- The arrangement of flowers on the flora axis is known as
(a) Venation
(b) Phyllotaxy
(c) Anthology
(d) Aestivation
(c) Anthology
- The unit of the female reproductive body in flower is
(a) Carpel
(b) Megasporangium
(c) Ovule
(d) Ovary
(a) Carpel
- After fertilization the ovule develops into
(a) Endosperm
(b) seed
(c) Embryo sac
(d) Fruit
(b) seed
- Fruit is a modification of
(a) Female gametophyte
(b) ovary
(c) carpel
(d) Nucellus
(b) ovary
- The seed coat develops from
(a) Embryo sac
(b) Inner integument
(c) Nucellus
(d) Outer integument
(d) Outer integument
- Nucellus in the seed is represented by
(a) Testa
(b) Pericarp
(c) Tagmen
(d) Seed Coat
(b) Pericarp
- Pollen grain is produced in
(a) Nucellus
(b) Stigma
(c) Anther
(d) Chalaza
(c) Anther
- Ovule is attached to the placenta by
(a) Pedicel
(b) Hilum
(c) Funicle
(d) petiole
(c) Funicle
- Pollen tube enters the embryo sac through
(a) Integument
(b) Micropyle
(c) chalaza
(d) Funicle
(b) Micropyle
- Pollen tube, entering in embryo sac has
(a) 3 male gametes
(b) 1 male gamete
(c) 2 male gametes
(d) 4 male gametes
(c) 2 male gametes
- In flowering plants, fertilization occurs in
(a) Ovary
(b) Embryo sac
(c) Nucellus
(d) Ovule
(b) Embryo sac
- The formation of zygote without the act of syngamy is called
(a) Polyembryony
(b) Parthenogenesis
(c) Budding
(d) Apospory
(b) Parthenogenesis
- Which phase of the life cycle is dominant in the individuals of angiosperms?
(a) Gametophyte
(b) Growth phase
(c) Sporophyte
(d) Development phase
(c) Sporophyte
- The process by which seedless fruits are produced are known as
(a) Parthenocarpy
(b) Apogamy
(c) Parthenogenesis
(d) Apospory
(a) Parthenocarpy
- A flower is
(a) Modified stem
(b) Modified leaf
(c) Modified branch
(d) Modified shoot
(d) Modified shoot
- A flower is specially formed for
(a) decoration
(b) photosynthesis
(c) reproduction
(d) fragrance
(c) reproduction
- Pollen tube enters the micropyle into through
(a) Female gamete
(b) Ovary
(c) Female gametophyte
(d) Nucellus
(c) Female gametophyte
- Embryo develops from
(a) Egg cell
(b) Zygote
(c) Egg-apparatus
(d) Synergids
(b) Zygote
- Fertilized secondary nucleus develops into
(a) Fruit
(b) Embryo
(c) seed
(d) Endosperm
(d) Endosperm
(d) Endosperm
- Transfer of pollen to the stigma is called
(a) Fertilization
(b) Germination
(c) pollination
(d) Gametogenesis
(c) pollination
- In ficus, pollination occurs through
(a) Water
(b) Air
(c) Bat
(d) Insects
(d) Insects
- After fertilization seed is developed from
(a) Embryo
(b) Embryo sac
(c) Ovule
(d) Zygote
(c) Ovule
- Cross-pollination is normally
(a) not beneficial
(b) harmful
(c) more beneficial
(d) rarely seen
(c) more beneficial
- Pollen grains germinate on
(a) Any surface
(b) Stigma
(c) soil
(d) Ovule
(b) Stigma
- An anther is also called
(a) Sporangium
(b) Megasporangium
(c) Microsporangium
(d) Stamen
(c) Microsporangium
- The source of food for developing embryos is
(a) Nucellus
(b) Ovule
(c) Endosperm
(d) Anther
(c) Endosperm
- Out of megaspore tetrad, the functional megaspore is
(a) Any megaspore
(b) middle megaspore
(c) Micropylar megaspore
(d) Chalazal megaspore
(d) Chalazal megaspore
- Micropylar end lacks
(a) Egg cell
(b) Synergids
(c) Egg-apparatus
(d) Integument
(d) Integument
- The larger cell of a pollen grain with an irregular shaped nucleus is
(a) Apical cell
(b) Generative cell
(c) Vegetative cell
(d) Basal cell
(c) Vegetative cell
- How many megaspore mother cells are produced in a nucellus?
(a) 3
(b) 1
(c) 2
(d) 4
(b) 1
- How many cells are formed in a mature female gametophyte?
(a) Eight
(b) Six
(c) Two
(d) Seven
(d) Seven
- Transfer of a pollen grain to the stigma of the same plant is called
(a) Antogamy
(b) Geitonogamy
(c) Allogamy
(d) Homogamy
(b) Geitonogamy
- The uppermost and largest cell of the suspensor which remains in contact with apical cells is called
(a) Hypocotyl
(b) Basal cell
(c) Hypophysis
(d) Terminal cell
(c) Hypophysis
- The adaptation for self-pollination is
(a) Herkogamy
(b) Cleistogamy
(c) Dichrgamy
(d) Homogamy
(b) Cleistogamy
- Which of the following cell is diploid?
(a) Synergid
(b) Antipodal cell
(c) Secondary nucleus
(d) Egg cell
(c) Secondary nucleus
- Suspensor is produced from
(a) Apical cell
(b) Small upper basal cell
(c) large lower basal cell
(d) Hypophysis
(b) Small upper basal cell
- Which structure pushes the developing embryo toward endosperm to get nutrition?
(a) Hypophysis
(b) Terminal octant
(c) Proembryo
(d) Suspensor
(d) Suspensor
- Development of male gametophyte begins
(a) After pollination
(b) Before pollination
(c) On the stigma
(d) In the embryo sac
(b) Before pollination
- 2 to 3 celled male gametophyte, starts its further development after pollination
(a) In the style
(b) In the ovary
(c) on the stigma
(d) In the ovule
(c) on the stigma
- Which part of the male gametophyte, disintegrates before fertilization?
(a) Generative nucleus
(b) Tube nucleus
(c) Male gamete
(d) Germpore
(b) Tube nucleus
- Which of the following is the basal part of the ovule?
(a) placenta
(b) Hilum
(c) Micropyle
(d) chalaza
(d) chalaza
- In dicot embryogenesis, the first division in the zygote is generally
(a) oblique
(b) longitudinal
(c) Transverse
(d) uncertain
(c) Transverse
- Two male gametes are
(a) produced before pollination
(b) Haploid
(c) Diploid
(d) At the time of pollination
(b) Haploid
- The innermost layer of the wall of microsporangium is called
(a) Endothecium
(b) Endodermis
(c) Tapetum
(d) Intine
(c) Tapetum
- Pollen grains represent
(a) The future sporophyte
(b) The sporophyte
(c) The gametophyte
(d) The male gametophyte
(d) The male gametophyte
- Tapetum provides
(a) protection to embryo
(b) Nourishment to pollen grains
(c) Nourishment to embryo
(d) Protection to endosperm
(b) Nourishment to pollen grains
- In triple fusion, how many male gametes participate?
(a) 1
(b) 2
(c) 3
(d) 4
(a) 1
- Germpores are actually
(a) Apertures in intine
(b) Thick area in intine
(c) Apertures in exine
(d) Thin area in intine
(c) Apertures in exine
- Radicle tip is derived from
(a) Suspensor
(b) Proembryo
(c) Basal cell
(d) Hypophysis
(d) Hypophysis
- How many haploid nuclei are involved in double fertilization?
(a) Four
(b) Two
(c) Five
(d) Three
(c) Five
- Endothecium in anther helps in
(a) Dehiscence of anther
(b) Nutrition to pollen
(c) Germination of pollen
(d) Formation of male gamete
(a) Dehiscence of anther
- The intine of a pollen grain is made up of
(a) Lignin and suberin
(b) Pectin and cellulose
(c) Lignin and Hemicellulose
(d) Pectin and callose
(b) Pectin and cellulose
- Which is the most resistant natural organic material?
(a) Cellulose
(b) Pectin
(c) Suberin
(d) Sporopollenin
(d) Sporopollenin
- Style is
(a) a delicate hollow tube
(b) a tough hollow tube
(c) a delicate filament
(d) called pollen tube
(c) a delicate filament
- Nucellus is a mass of
(a) Parenchymatous tissue
(b) Sclerenchymatous tissue
(c) Meristematic tissue
(d) Collenchymatous tissue
(a) Parenchymatous tissue
- Which one of the following is the example of mitosis?
(a) Megasporongensis
(b) Microsporogensis
(c) Pollen formation
(d) Division of the generative cell
(b) Microsporogensis
- Typical anther normally consists of
(a) One lobe Four sporangia
(b) Two lobe Two sporangia
(c) Two lobe Four sporangia
(d) One lobe Two sporangia
(c) Two lobe Four sporangia
- During the development of monosporic development of embryo sac the nucleus of the functional megaspore divides
(a) Two times
(b) Three times
(c) One time
(d) Repeatedly
(b) Three times
- Cross-pollination has the advantage of
(a) Mutation
(b) polyploidy formation
(c) Genetic recombination
(d) Crossing over
(c) Genetic recombination
- Unisexual flowers prevent
(a) Pollination
(b) Breeding
(c) Self-pollination
(d) Cross-fertilization
(c) Self-pollination
- The function of the filiform apparatus is
(a) To nourish the pollen grain
(b) To guide the entry of pollen tube
(c) To develop pollen tube
(d) To carry pollen tube through style
(b) To guide the entry of pollen tube
- Which one of the following is an example of free-nuclear endosperm
(a) Coconut water
(b) Castor
(c) Sugarcane juice
(d) Groundnut
(a) Coconut water
- The protective cover of the radicle in maize seed is called
(a) Micorhiza
(b) Coleptile
(c) Scutellum
(d) Coleorhiza
(d) Coleorhiza
- In angiosperm the endosperm is formed
(a) In the nucellus
(b) In the embryo sac
(c) In the seed
(d) In the anther
(b) In the embryo sac
- Stamen show homology with
(a) Gametophyte
(b) male cone
(c) Microsporophyll
(d) Sporangium
(c) Microsporophyll
- The pedicel of the female flower coils after pollination in
(a) Lotus
(b) Hydrilla
(c) Vallisneria
(d) Trapa
(c) Vallisneria
- The arrangement of the ρ haploid nuclei in the normal dicot embryo sac is
(a) 2 + 3 + 3
(b) 2 + 3 + 2
(c) 3 + 3 + 2
(d) 3 + 2 + 3
(b) 2 + 3 + 2
- In the flowering plants, male and female gametes both are
(a) Motile
(b) Non-motile
(c) Diploid
(d) Very large
(b) Non-motile
- Wind pollination requires that the pollen grains are
(a) Heavy and wet
(b) Heavy and non-sticky
(c) Light and dry
(d) Heavy and sticky
(c) Light and dry
- Future sporophytic generation in a seed is
(a) Cotyledon
(b) Endosperm
(c) Hypocotyl
(d) Embryo
(d) Embryo
- Scatelum is
(a) an endosperm
(b) a seed coat
(c) an embryo
(d) a cotyledon
(d) a cotyledon
- Which one of the following floats in the cytoplasm of the vegetative cell?
(a) Male gamete
(b) Generative cell
(c) Female gamete
(d) Microspore
(b) Generative cell
- The mature pollen grain contains
(a) 3 cells
(b) 7 cells
(c) 2 cells
(d) 1 cell
(c) 2 cells
- Pollen tube is formed by
(a) Germ pore
(b) Exine
(c) Style
(d) Intine
(d) Intine
- A single ovule produces
(a) 3 female gamete
(b) 1 female gamete
(c) 2 female gamete
(d) 4 female gamete
(b) 1 female gamete
- Embryo sac is formed inside
(a) Seed
(b) Endosperm
(c) Embryo
(d) Ovule
(d) Ovule
- Pro-embryo is a
(a) 8 celled structure
(b) 4 celled structure
(c) 2 celled structure
(d) 16 celled structure
(b) 4 celled structure
- Suspensor is made up of
(a) 2 to 4 cells
(b) 4 to 8 cells
(c) 8 to 16 cells
(d) 20 to 25 cells
(d) 20 to 25 cells
- Root cap of the embryo develops from
(a) Basal cell
(b) Apical cell
(c) Hypophysis
(d) Hypocotyl
(c) Hypophysis
- The hilum of the ovule represents the junction between
(a) Nucellus and Embryo
(b) Nucellus and Integuments
(c) Funicle and Integuments
(d) Funicle and ovule
(d) Funicle and ovule
- Which layer of the wall of microsporangium is made up of a fibrous layer
(a) Middle layer
(b) Endothecium
(c) Tapetum
(d) Epidermis
(b) Endothecium
- Out of the four sets of appendages of a typical flower the outer two sets are
(a) Fertile
(b) Reproductive
(c) Sterile
(d) Filamentous
(c) Sterile
- A proximal sterile part of the stamen is called
(a) Style
(b) Connective
(c) Anther
(d) Filament
(d) Filament
- A sterile region present between stigma and ovary is called
(a) Pollen tube
(b) Style
(c) Filament
(d) Suspensor
(b) Style
- The opposite end of the micropylar region of an ovule is called
(a) Embryo sac
(b) Nucellus
(c) Chalaza
(d) Thalamus
(c) Chalaza
- When pollen grains are not transferred from anthers to stigma in a flower, due to the physical barrier, it is called
(a) Cleistogamy
(b) Herkogamy
(c) Dichogamy
(d) Heterogamy
(b) Herkogamy
- The asexual production of seed is called
(a) Fragmentation
(b) Apomixis
(c) Self-fertilization
(d) Dormancy
(b) Apomixis
- Perisperm is
(a) Peripheral part of the endosperm
(b) Remnants of endosperm
(c) Disintegrated secondary nucleus
(d) persistent of nucleus
(d) persistent of nucleus
- The root cell of the wheat plant has 42 chromosomes. What would be the number of chromosomes in the synergid cell?
(a) 21
(b) 7
(c) 28
(d) 14
(a) 21
- The plant part which consists of two generations, one within the other, is
(a) Germinated pollen grain
(b) Embryo
(c) Unfertilized ovule
(d) Seed
(c) Unfertilized ovule
- The pollen tube usually enters the female gametophyte
(a) through one of the synergids
(b) by directly penetrating the egg
(c) between one synergid and central cell
(d) by knocking off the antipodal cell
(a) through one of the synergids