NEET Biology Sexual Reproduction In Flowering Plants MCQs Set A

Question: Plant embryo develops from

• a) Zygote
• b) Fruit
• c) Flower
• d) seed

Answer: Zygote

Question: Embryo of flowering plant is always -

• a) Diploid (2n)
• b) Triploid (3n)
• c) Tetraploid (4n)
• d) Haploid (n)

Answer: Diploid (2n)

Question: Plant embryo is a mass of

• a) Miniature plant
• b) Uncertain tissue
• c) cells
• d) Collection of plant tissues

Answer: Miniature plant

Question: Stamen is a modification of

• a) Shoot
• b) Megasporophyll
• c) Microsporophyll
• d) Leaf

Answer: Shoot

Question: Zygote is formed inside the

• a) Female gametophyte
• b) Seed
• c) Style
• d) Stigma

Answer: Female gametophyte

Question: A microspore is a

• a) First cell of male gametophyte
• b) Diploid cell
• c) Male gamate
• d) Last cell of male gametophyte

Answer: First cell of male gametophyte

Question: An anther consists of

• a) four microsporangia
• b) many microsporangia
• c) one microsporangium
• d) Two microsporangia

Answer: four microsporangia

Question: Cells of nucellus are always

• a) Diploid
• b) Enucleated
• c) Triploid
• d) Haploid

Answer: Diploid

Question: The embryo sac is produced from

• a) Egg cell
• b) Megaspore
• c) Zygote
• d) Microscope

Answer: Egg cell

Question: An egg-apparatus contains

• a) An egg + Two synergids
• b) An egg + two antipodals
• c) An egg + Secondary nucleus
• d) Antipodal cell + synergid

Answer: An egg + Two synergids

Question: In angiosperm the endosperm nucleus is

• a) Triploid
• b) Diploid
• c) Tetraploid
• d) Haploid

Answer: Triploid

Question: Female gametophyte is also known as

• a) Embryo sac
• b) Nucellus
• c) egg-apparatus
• d) ovule

Answer: Embryo sac

Question: Embryo sac contains

• a) 1 egg
• b) 4 eggs
• c) 3 eggs
• d) 2 eggs

Answer: 1 egg

Question: Carpel is formed of

• a) Three part
• b) Two part
• c) Four part
• d) Seven part

Answer: Three part

Question: The arrangement of flowers on the flora axis is known as

• a) Anthology
• b) Aestivation
• c) Phyllotaxy
• d) Venation

Answer: Anthology

Question: The unit of female reproductive body in flower is

• a) Carpel
• b) Megasporangium
• c) Ovule
• d) Ovary

Answer: Carpel

Question: After fertilization the ovule develops into

• a) seed
• b) Endosperm
• c) Embryo sac
• d) Fruit

Answer: seed

Question: Fruit is a modification of

• a) ovary
• b) Female gametophyte
• c) carpel
• d) Nucellus

Answer: ovary

Question: The seed coat develops from

• a) Outer integument
• b) Nucellus
• c) Inner integument
• d) Embryo sac

Answer: Outer integument

Question: Nucellus in seed is represented by

• a) Peri carp
• b) Testa
• c) Tagmen
• d) Seed Coat

Answer: Peri carp

More Questions......................................

Question: Pollen grain are produced in

• a) Anther
• b) Chalaza
• c) Stigma
• d) Nucellus

Answer: Anther

Question: Ovule is attached to the placenta by

• a) Funicle
• b) petiole
• c) Hilum
• d) pedical

Answer: Funicle

Question: Pollen tube enters the embryo sac through

• a) Micropyle
• b) Integument
• c) chalaza
• d) Funicle

Answer: Micropyle

Question: Pollen tube, entering in embryo sac has

• a) 2 male gametes
• b) 4 male gametes
• c) 1 male gametes
• d) 3 male gametes

Answer: 2 male gametes

Question: In flowering plants, fertilization occur in

• a) Embryo sac
• b) Ovary
• c) Nucellus
• d) Ovule

Answer: Embryo sac

Question: The formation of zygote without the act of syngamy is called

• a) Parthenogenesis
• b) Poly embryony(
• c) Budding
• d) Apospory

Answer: Parthenogenesis

Question: Which phase of life cycle is dominant in the individuals of angiosperms ?

• a) Sporophyte
• b) Development phase
• c) Growth phase
• d) Gametophyte

Answer: Sporophyte

Question: The process by which seedless fruits are produced are known as

• a) Parthenocarpy
• b) Apogamy
• c) Parthenogenesis
• d) Apospory

Answer: Parthenocarpy

Question: A flower is

• a) Modified shoot
• b) Modified branch
• c) Modified leaf
• d) Modified stem

Answer: Modified shoot

Question: A flower is specially formed for

• a) reproduction
• b) fragrance
• c) photosynthesis
• d) decoration

Answer: reproduction

Question: Pollen tube enters the micropyle into through

• a) Female gametophyte
• b) Nucellus
• c) Ovary
• d) Female gamete

Answer: Female gametophyte

Question: Embryo develops from

• a) Zygote
• b) Egg cell
• c) Egg-apparatus
• d) Synergids

Answer: Zygote

Question: Fertilized secondary necleus develops into

• a) Endosperm
• b) seed
• c) Embryo
• d) Fruit

Answer: Endosperm

Question: Transfer of pollen to the stigma is called

• a) pollination
• b) Gametogenesis
• c) Germination
• d) Fertilization

Answer: pollination

Question: In ficus pollination occurs through

• a) Insects
• b) Bat
• c) Air
• d) Water

Answer: Insects

Question: After fertilization seed is developed from

• a) Ovule
• b) Zygote
• c) Embryo sac
• d) Embryo

Answer: Ovule

Question: Cross pollination is normally

• a) more beneficial
• b) rarely seen
• c) harmful
• d) not beneficial

Answer: more beneficial

Question: Pollen grains germinate on

• a) Stigma
• b) Any surface
• c) soil
• d) Ovule

Answer: Stigma

Question: An anther is also called

• a) Microsporangium
• b) Stamen
• c) Megasporangium
• d) Sporangium

Answer: Microsporangium

Question: The source of food for developing embryo is

• a) Endosperm
• b) Anther
• c) Ovule
• d) Nucellus

Answer: Endosperm

Question: Out of megaspore tetrad, the functional megaspore is

• a) Chalazal megaspore
• b) middle megaspore
• c) Any megaspore
• d) Micropylar megaspore

Answer: Chalazal megaspore

Question: Micropylar end lacks

• a) Integument
• b) Egg-apparatus
• c) Synergids
• d) Egg cell

Answer: Integument

Question: The larger cell of a pollen grain with irregular shaped nucleus is

• a) Vegetative cell
• b) Basal cell
• c) Generative cell
• d) Apical cell

Answer: Vegetative cell

Question: How many megaspore mothe cell are produced in a nucellus ?

• a) 1
• b) 2
• c) 4
• d) 3

Answer: 1

Question: How many cells are formed in a mature female gametophyte ?

• a) Seven
• b) Two
• c) Six
• d) Eight

Answer: Seven

Question: Transfer of a pollen grain to the stigma of the same plant is called

• a) Geitonogamy
• b) Antogamy
• c) Allogamy
• d) Homogamy

Answer: Geitonogamy

Question: The uppermost and largest cell of the suspensor which remains in contact with apical cells is called

• a) Hypophysis
• b) Terminal cell
• c) Basal cell
• d) Hypocotyl

Answer: Hypophysis

Question: The adaptation for self-pollination is

• a) Cleistogamy
• b) Herkogamy
• c) Dichrgamy
• d) Homogamy

Answer: Cleistogamy

Question: Which of the following cell is diploid?

• a) Secondary nucleus
• b) Egg cell
• c) Antipodal cell
• d) Synergid

Answer: Secondary nucleus

Question: Suspensor is produced from

• a) Small upper basal cell
• b) Apical cell
• c) large lower basal cell
• d) Hypophysis

Answer: Small upper basal cell

Question: Which structure pushes the developing embryo toward endosperm to get nutrition ?

• a) Suspensor
• b) Proembryo
• c) Terminal octant
• d) Hypophysis

Answer: Suspensor

Question: Development of male gametophyte begins

• a) Before pollination
• b) After pollination
• c) On the stigma
• d) In the embryo sac

Answer: Before pollination

Question: 2 to 3 celled male gametophyte, starts its further development after pollination

• a) on the stigma
• b) In the ovule
• c) In the ovary
• d) In the style

Answer: on the stigma

Question: Which part of the male gametophyte, disintegrates before fertilization ?

• a) Tube nucleus
• b) Generative nucleus
• c) Male gamete
• d) Germpore

Answer: Tube nucleus

Question: Which of the following is the basal part of ovule ?

• a) chalaza
• b) Micropyle
• c) Hilum
• d) placenta

Answer: chalaza

Question: In dicot embrogenesis, the firast division in zygote is generally

• a) Transverse
• b) uncertain
• c) longitudinal
• d) oblique

Answer: Transverse

Question: Two male gametes are

• a) Haploid
• b) produced before pollination
• c) Diploid
• d) At the time of pollination

Answer: Haploid

Question: The innermost layer of the wall of microsporangium is called

• a) Tapetum
• b) Intine
• c) Endodermis
• d) Endothecium

Answer: Tapetum

Question: Pollen grains represent

• a) The male gametophyte
• b) The sporophyte
• c) The future sporophyte
• d) The gametophyte

Answer: The male gametophyte

Question: Tapetum provides

• a) Nourishment to pollen grains
• b) Protection to endosperm
• c) protection to embryo
• d) Nourishment to embryo

Answer: Nourishment to pollen grains

Question: In triple fusion, how many male gamete participate

• a) 1
• b) 2
• c) 3
• d) 4

Answer: 1

Question: Germpores are actually

• a) Apertures in exine
• b) Apertures in intine
• c) Thick area in intine
• d) Thin area in intine

Answer: Apertures in exine

Question: Radicle tip is derived from

• a) Hypophysis
• b) Basal cell
• c) Proembryo
• d) Suspensor

Answer: Hypophysis

Question: How many haploid nuclei are involved in double fertilization ?

• a) Five
• b) Two
• c) Four
• d) Three

Answer: Five

Question: Endothecium in anther helps in

• a) Dehiscence of anther
• b) Germination of pollen
• c) Nutrition to pollen
• d) Formation of male gamete

Answer: Dehiscence of anther

Question: The intine of a pollen grain is made up of

• a) Pectin and cellulose
• b) Pectin and callose
• c) Lignin and suberin
• d) Lignin and Hemicellulose

Answer: Pectin and cellulose

Question: Which is the most resistant natural organic material ?

• a) Sporopollenin
• b) Suberin
• c) Pectin
• d) Cellulose

Answer: Sporopollenin

Question: Style is

• a) a delicate filament
• b) a is delicate hollow tube
• c) a tough hollow tube
• d) called pollen tube

Answer: a delicate filament

Question: Nucellus is mass of

• a) Parenchymatous tisse
• b) Meristematic tissue
• c) Sclerenchymatous tissue
• d) Collenchymatous tissue

Answer: Parenchymatous tisse

Question: Which one of the following is the example of mitosis ?

• a) Microsporogensis
• b) Division of generative cell
• c) Megasporongensis
• d) Pollen formation

Answer: Microsporogensis

Question: Typical anther normally consists of

• a) Two lobe Four sporangia
• b) One lobe Four sporangia
• c) Two lobe Two sporangia
• d) One lobe Two sporangia

Answer: Two lobe Four sporangia

Question: During the development of monosporic development of embryo sac the nucleus of the functional megaspore divides

• a) Three times
• b) Two times
• c) One time
• d) Repeatedly

Answer: Three times

Question: Cross pollination has an advantage of

• a) Genetic recombination
• b) Crossing over
• c) polyploidy formation
• d) Mutation

Answer: Genetic recombination

Question: Unisexual flowers prevent

• a) Self-pollination
• b) Cross fertilization
• c) Breeding
• d) Pollination

Answer: Self-pollination

Question: The functionof the filiform apparatus is

• a) To guide the entry of pollen tube
• b) To carry pollen tube through style
• c) To nourish the pollen grain
• d) To develop pollen tube

Answer: To guide the entry of pollen tube

Question: Which one of the following is an example of free-nuclear endosperm

• a) Coconut water
• b) Castor
• c) Sugarcane juice
• d) Groundnut

Answer: Coconut water

Question: The protective cover of the radicle in maize seed is called

• a) Coleorhiza
• b) Scutelum
• c) Coleptile
• d) Micorhiza

Answer: Coleorhiza

Question: In angiosperm the endosperm is formed

• a) In the embryo sac
• b) In the nucellus
• c) In the seed
• d) In the anther

Answer: In the embryo sac

Question: Stamen show homology with

• a) Microsporophyll
• b) Sporangium
• c) male cone
• d) Gametophyte

Answer: Microsporophyll

Question: The pedicel of the female flower coils after pollination in

• a) Vallisneria
• b) Trapa
• c) Hydrilla
• d) Lotus

Answer: Vallisneria

Question: In a given figure which part is correct ?

• a) Cell membrance
• b) Nucleus
• c) Cytoplasm
• d) All (a, b, c)

Answer: Cell membrance