Sexual Reproduction In Flowering Plant MCQ And Answer
What would be the number of chromosomes in the cells of the aleurone layer in a plant species with 8 chromosomes in its synergids.?
(1) 16
(2) 24
(3) 32
(4) 8
Answer:- 2
The arrangement of the nuclei in a normal embryosac in the dicot plants is
(2) 24
(3) 32
(4) 8
Answer:- 2
The arrangement of the nuclei in a normal embryosac in the dicot plants is
(1) 2+4+2
(2) 3+2+3
(3) 2+3+3
(4) 3+3+2
Answer:- 2
In a Cereal grain the single cotyledon of embryo is represented by
(2) 3+2+3
(3) 2+3+3
(4) 3+3+2
Answer:- 2
In a Cereal grain the single cotyledon of embryo is represented by
(1) Coleorrhiza
(2) Scutellum
(3) Prophyll
(4) Coleoptile
Answer:- 2
Long filamentous threads protruding at the end of a young cob of maize are:
(2) Scutellum
(3) Prophyll
(4) Coleoptile
Answer:- 2
Long filamentous threads protruding at the end of a young cob of maize are:
(1) Hairs
(2) Anthers
(3) Styles
(4) Ovaries
Answer:- 3
In which of the following fruits is the edible part the aril?
(2) Anthers
(3) Styles
(4) Ovaries
Answer:- 3
In which of the following fruits is the edible part the aril?
(1) Litchi
(2) Custard apple
(3) Pomegranate
(4) Orange
Answer:- 1
A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of -
(2) Custard apple
(3) Pomegranate
(4) Orange
Answer:- 1
A scion is grafted to a stock. The quality of fruits produced will be determined by the genotype of -
(1) Stock
(2) Scion
(3) Both stock and scion
(4) Neither stock nor scion
Answer:- 2
Male gametes in angiosperms are formed by the division of :-
(2) Scion
(3) Both stock and scion
(4) Neither stock nor scion
Answer:- 2
Male gametes in angiosperms are formed by the division of :-
(1) Microspore mother cell
(2) Microspore
(3) Generative cell
(4) Vegetative cell
Answer:- 3
Which one of the following is surrounded by a callose wall ?
(2) Microspore
(3) Generative cell
(4) Vegetative cell
Answer:- 3
Which one of the following is surrounded by a callose wall ?
(1) Pollen grain
(2) Microspore mother cell
(3) Male gamete
(4) Egg
Answer:- 2
Unisexuality of flowers prevents :-
(2) Microspore mother cell
(3) Male gamete
(4) Egg
Answer:- 2
Unisexuality of flowers prevents :-
(1) Geitonogamy, but not xenogamy
(2) Autogamy and geitonogamy
(3) Autogamy, but not geitonogamy
(4) Both geitonogamy and xenogamy
Answer:- 3
Endosperm is consumed by developing embryo in the sed of :-
(2) Autogamy and geitonogamy
(3) Autogamy, but not geitonogamy
(4) Both geitonogamy and xenogamy
Answer:- 3
Endosperm is consumed by developing embryo in the sed of :-
(1) Pe
(2) Maize
(3) Coconut
(4) Castor
Answer:- 1
Which one of the following is resistant to enzyme action?
(2) Maize
(3) Coconut
(4) Castor
Answer:- 1
Which one of the following is resistant to enzyme action?
(1) Pollen exine
(2) Leaf cuticle
(3) Cork
(4) Wood fibre
Answer:- 1
What does the filiform apparatus do at the entrance into ovule?
(2) Leaf cuticle
(3) Cork
(4) Wood fibre
Answer:- 1
What does the filiform apparatus do at the entrance into ovule?
(1) It brings about opening of the pollen tube
(2) It guides pollen tube from a synergid to egg
(3) It helps in the entry of pollen tube into a synergid
(4) It prevents entry of more than one pollen tube into the embryo sac
Answer:- 3
Which one of the following pairs of plant structures has haploid number of chromosomes?
(2) It guides pollen tube from a synergid to egg
(3) It helps in the entry of pollen tube into a synergid
(4) It prevents entry of more than one pollen tube into the embryo sac
Answer:- 3
Which one of the following pairs of plant structures has haploid number of chromosomes?
(1) Nucellus and antipodal cells
(2) Egg nucleus and secondary nucleus
(3) Megaspore mother cell and antipodal cells
(4) Egg cell and antipodal cells
Answer:- 4
An example of a seed with endosperm, perisperm, and caruncle is :-
(2) Egg nucleus and secondary nucleus
(3) Megaspore mother cell and antipodal cells
(4) Egg cell and antipodal cells
Answer:- 4
An example of a seed with endosperm, perisperm, and caruncle is :-
(1) Castor
(3) Coffee
(2) Cotton
(4) Lily
Answer:- 1
The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons?
(3) Coffee
(2) Cotton
(4) Lily
Answer:- 1
The scutellum observed in a grain of wheat or maize is comparable to which part of the seed in other monocotyledons?
(1) Plumule
(2) Cotyledon
(3) Endosperm
(4) Aleurone layer
Answer:- 2
Apomictic embryos in citrus arise from:
(2) Cotyledon
(3) Endosperm
(4) Aleurone layer
Answer:- 2
Apomictic embryos in citrus arise from:
(1) Diploid egg,
(2) Synergids
(3) Maternal sporophytic tissue in ovule
(4) Antipodal cells
Answer:- 3
Wind pollinated flowers are:
(2) Synergids
(3) Maternal sporophytic tissue in ovule
(4) Antipodal cells
Answer:- 3
Wind pollinated flowers are:
(1) Small, producing nectar and dry polen
(2) Small, brightly coloured, producing large number of pollen grains
(3) Small, producing large number of dry pollen grains
(4) Large, producing abundant nectar and pollen
Answer:- 2
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:
(2) Small, brightly coloured, producing large number of pollen grains
(3) Small, producing large number of dry pollen grains
(4) Large, producing abundant nectar and pollen
Answer:- 2
Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called:
(1) Autogamy
(2) Xenogamy
(3) Geitonogamy
(4) Karyogamy
Answer:- 3
Attractants and rewards are required for:
(2) Xenogamy
(3) Geitonogamy
(4) Karyogamy
Answer:- 3
Attractants and rewards are required for:
(a) Entomophily
(b) Anemophily
(c) Hydrophily
(d) Cleistogamy
Answer:- 2
What is common between vegetative reproduction and Apomixis?
(b) Anemophily
(c) Hydrophily
(d) Cleistogamy
Answer:- 2
What is common between vegetative reproduction and Apomixis?
(1) Both produces progeny identical to the parent.
(2) Both are applicable to only dicot plants.
(3) Both bypass the flowering phase.
(4) Both occur round the year.
Answer:- 1
In angiosperms, functional megaspore develops into:
(2) Both are applicable to only dicot plants.
(3) Both bypass the flowering phase.
(4) Both occur round the year.
Answer:- 1
In angiosperms, functional megaspore develops into:
(1) Pollen sac
(2) Embryo sac
(3) Ovule
(4) Endosperm
Answer:- 2
Filiform apparatus is a characteristic feature of :-
(2) Embryo sac
(3) Ovule
(4) Endosperm
Answer:- 2
Filiform apparatus is a characteristic feature of :-
(1) Suspensor
(2) Egg
(4) Zygote
(3) Synergid
Answer:- 3
Nucellar polyembryony is reported in species of :
(2) Egg
(4) Zygote
(3) Synergid
Answer:- 3
Nucellar polyembryony is reported in species of :
(1) Citrus
(2) Gossypium
(3) Triticum
(4) Brassica
Answer:- 1
In which one of the following pollination is autogamous?
(2) Gossypium
(3) Triticum
(4) Brassica
Answer:- 1
In which one of the following pollination is autogamous?
(1) Geitonogamy
(2) Xenogamy
(3) Chasmogamy
(4) Cleistogamy
Answer:- 4
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?
(2) Xenogamy
(3) Chasmogamy
(4) Cleistogamy
Answer:- 4
What would be the number of chromosomes of the aleurone cells of a plant with 42 chromosomes in its root tip cells?
(1) 42
(2) 63
(3) 84
(4) 21
Answer:- 2
What is the characteristics of tapetum?
(2) 63
(3) 84
(4) 21
Answer:- 2
What is the characteristics of tapetum?
(1) It stores food
(2) It is multinucleated
(3) It is multi layered structure
(4) It nourishes the megaspore
Answer:- 2
Cleistogamy is leading over anthesis, because-
(2) It is multinucleated
(3) It is multi layered structure
(4) It nourishes the megaspore
Answer:- 2
Cleistogamy is leading over anthesis, because-
(1) Pollinators are not required
(2) It assures heterozygosity
(3) Favours insect pollination
(4) It allows xenogamy
Answer:- 1
The coconut water and the edible part of coconut are equivalent to :-
(2) It assures heterozygosity
(3) Favours insect pollination
(4) It allows xenogamy
Answer:- 1
The coconut water and the edible part of coconut are equivalent to :-
(1) Mesocarp
(2) Embryo
(3) Endosperm
(4) Endocarp
Answer:- 3
The gynoecium consists of many free pistils in flowers of :-
(2) Embryo
(3) Endosperm
(4) Endocarp
Answer:- 3
The gynoecium consists of many free pistils in flowers of :-
(1) Papaver
(2) Michelia
(3) Aloe
(4) Tomato
Answer:- 2
Both, autogamy and geitonogamy are prevented in:-
(3) Aloe
(4) Tomato
Answer:- 2
Both, autogamy and geitonogamy are prevented in:-
(1) Castor
(2) Maize
(3) Papaya
(4) Cucumber
Answer:- 3
Even in absence of pollinating agents seed-setting is assured in :-
(2) Maize
(3) Papaya
(4) Cucumber
Answer:- 3
Even in absence of pollinating agents seed-setting is assured in :-
(1) Salvia
(2) Fig
(3) Commellina
(4) Zostera
Answer:- 3
Plants with ovaries having only one or a few ovules, are generally pollinated by :-
(1) Birds
(2) Wind
(3) Bees
(4) Butterflies
Answer:- 2
Which one of the following statements is wrong?
(2) Fig
(3) Commellina
(4) Zostera
Answer:- 3
Plants with ovaries having only one or a few ovules, are generally pollinated by :-
(1) Birds
(2) Wind
(3) Bees
(4) Butterflies
Answer:- 2
Which one of the following statements is wrong?
(1) Pollen grains in some plants remain viable for months.
(2) Intine is made up of cellulose and pectin.
(3) When pollen is shed at two-celled state, double fertilization does not take place.
(4) Vegetative cell is larger than generative cell.
Answer:- 3
What is the function of germ pore?
(2) Intine is made up of cellulose and pectin.
(3) When pollen is shed at two-celled state, double fertilization does not take place.
(4) Vegetative cell is larger than generative cell.
Answer:- 3
What is the function of germ pore?
(1) Initiation of pollen tube
(2) Release of male gametes
(3) Emergence of radicle
(4) Absorption of water for seed germination
Answer:- 4
Which of the following is incorrect about wind pollination?
(2) Release of male gametes
(3) Emergence of radicle
(4) Absorption of water for seed germination
Answer:- 4
Which of the following is incorrect about wind pollination?
(1) Compact inflorescence
(2) Well - Exposed stamens
(3) Many and light pollens
(4) Ovary has many ovules
Answer:- 4
Perisperm differs from endosperm in:
(2) Well - Exposed stamens
(3) Many and light pollens
(4) Ovary has many ovules
Answer:- 4
Perisperm differs from endosperm in:
(1) Its formation by fusion of secondary nucleus with several sperms
(2) Being a haploid tissue
(3) Having no reserve food
(4) Being a diploid tissue
Answer:- 4
Megasporangium is equivalent to:
(2) Being a haploid tissue
(3) Having no reserve food
(4) Being a diploid tissue
Answer:- 4
Megasporangium is equivalent to:
(1) Ovule
(2) Embryo sac
(3) Fruit
(4) Nucellus
Answer:- 1
Advantage of cleistogamy is:-
(2) Embryo sac
(3) Fruit
(4) Nucellus
Answer:- 1
Advantage of cleistogamy is:-
(1) Vivipary
(2) Higher genetic variability
(3) More vigorous offspring
(4) No dependence on pollinators
Answer:- 4
Seed coat is not thin, membranous in:
(2) Higher genetic variability
(3) More vigorous offspring
(4) No dependence on pollinators
Answer:- 4
Seed coat is not thin, membranous in:
(1) Gram
(2) Maize
(3) Coconut
(4) Groundnut
Answer:- 3
Which one of the following statements is correct?
(2) Maize
(3) Coconut
(4) Groundnut
Answer:- 3
Which one of the following statements is correct?
(1) Tapetum nourishes the developing pollen
(2) Hard outer layer of pollen is called intine
(3) Sporogenous tissue is haploid
(4) Endothecium produces the micorspores
Answer:- 1
Sporopollenin in exine of pollen grain can be degraded by :
(2) Hard outer layer of pollen is called intine
(3) Sporogenous tissue is haploid
(4) Endothecium produces the micorspores
Answer:- 1
Sporopollenin in exine of pollen grain can be degraded by :
(1) high temperature
(2) low pH (strong acids)
(3) some enzymes
(4) can't be degraded
Answer:- 4
After pollination viability of pollen grains of wheat/ rice is about:
(2) low pH (strong acids)
(3) some enzymes
(4) can't be degraded
Answer:- 4
After pollination viability of pollen grains of wheat/ rice is about:
(1) 30 min
(2) 60 min
(3) 70 min
(4) 90 min
Answer:- 1
Endosperm may persist in mature seeds of :-
(2) 60 min
(3) 70 min
(4) 90 min
Answer:- 1
Endosperm may persist in mature seeds of :-
(1) Bryophyta
(2) Angiosperm
(3) Algae
(4) Pteridophyta
Answer:- 2
Triploid primary endosperm nucleus is the characteristic feature of :
(2) Angiosperm
(3) Algae
(4) Pteridophyta
Answer:- 2
Triploid primary endosperm nucleus is the characteristic feature of :
(1) Algae
(2) Bryophytes
(3) Gymnosperm
(4) Angiosperms
Answer:- 4
In an angiospermic plant just after double fertilization, arrangement of nuclei in an ovule:
(2) Bryophytes
(3) Gymnosperm
(4) Angiosperms
Answer:- 4
In an angiospermic plant just after double fertilization, arrangement of nuclei in an ovule:
(1) Five haploid, one diploid, one triploi
(2) Three haploid. Two diploid. Two triploid
(3) Two haploid. Three diploid. Two triploid
(4) One haploid, Three diploid. Three triploid
Answer:- 1
Geitonogamy involves:
(2) Three haploid. Two diploid. Two triploid
(3) Two haploid. Three diploid. Two triploid
(4) One haploid, Three diploid. Three triploid
Answer:- 1
Geitonogamy involves:
(1) fertilization of a flower by the pollen from another flower of the same plant
(2) fertilization of a flower by the pollen from the same flower.
(3) fertilization of a flower by the pollen from a flower of another plant in the same population.
(4) fertilization of a flower by the pollen from a flower of another plant belonging to a distant population.
Answer:- 1
Male gametophyte with least number of cell is present in:
(2) fertilization of a flower by the pollen from the same flower.
(3) fertilization of a flower by the pollen from a flower of another plant in the same population.
(4) fertilization of a flower by the pollen from a flower of another plant belonging to a distant population.
Answer:- 1
Male gametophyte with least number of cell is present in:
(1) Pteris
(2) Funaria
(3) Lilium
(4) Pinus
Answer:- 3
Pollen tablets are available in the market for:
(2) Funaria
(3) Lilium
(4) Pinus
Answer:- 3
Pollen tablets are available in the market for:
(1) In vitro fertilization
(2) Breeding programmes
(3) Supplementing food
(4) Ex situ conservation
Answer:- 3
Function of filiform apparatus is to :-
(2) Breeding programmes
(3) Supplementing food
(4) Ex situ conservation
Answer:- 3
Function of filiform apparatus is to :-
(1) Recognize the suitable pollen at stigma
(2) Stimulate division of generative cell
(3) Produce nectar
(4) Guide the entry of pollen tube
Answer:- 3
Non-albuminous seed is produced in :-
(2) Stimulate division of generative cell
(3) Produce nectar
(4) Guide the entry of pollen tube
Answer:- 3
Non-albuminous seed is produced in :-
(1) Maize
(3) Wheat
(2) Castor
(4) Pea
Answer:- 4
Pollen grain along with the growing tube has how many haploid nuclei?
(3) Wheat
(2) Castor
(4) Pea
Answer:- 4
Pollen grain along with the growing tube has how many haploid nuclei?
(1) One
(2) Two
(3) Three
(4) Four
Answer:- 3
What do you mean by dioecious condition?(1) Male and Female reproductive structures on same plant
(2) Male and Female reproductive structures on different plants
(3) It is a bisexual condition of flower
(4) Same flower having stamen and pistil
Answer:- 2
Transmission tissue is characteristic feature of :-
(2) Two
(3) Three
(4) Four
Answer:- 3
What do you mean by dioecious condition?(1) Male and Female reproductive structures on same plant
(2) Male and Female reproductive structures on different plants
(3) It is a bisexual condition of flower
(4) Same flower having stamen and pistil
Answer:- 2
Transmission tissue is characteristic feature of :-
(1) Solid style
(2) Dry stigma
(3) Wet stigma
(4) Hollow style
Answer:- 1
Which one of the following may require pollinators, but is genetically similar to autogamy?
(2) Dry stigma
(3) Wet stigma
(4) Hollow style
Answer:- 1
Which one of the following may require pollinators, but is genetically similar to autogamy?
(1) Xenogamy
(2) Apogamy
(3) Cleistogamy
(4) Geitonogamy
Answer:- 4
Which one of the following statements is not true?
(2) Apogamy
(3) Cleistogamy
(4) Geitonogamy
Answer:- 4
Which one of the following statements is not true?
(1) Pollen grains of some plants cause severe allergies and bronchial afflictions in some people
(2) The flowers pollinated by flies and bats secrete foul odour to attract them
(3) Honey is made by bees by digesting - pollen collected from flowers
(4) Pollen grains are rich in nutrients, and they are used in the form of tablets and syrups
Answer:- 3
The hilum is a scar on the :
(2) The flowers pollinated by flies and bats secrete foul odour to attract them
(3) Honey is made by bees by digesting - pollen collected from flowers
(4) Pollen grains are rich in nutrients, and they are used in the form of tablets and syrups
Answer:- 3
The hilum is a scar on the :
(1) Fruit, where it was attached to pedicel
(2) Fruit, where style was present
(3) Seed, where micropyle was present
(4) Seed, where funicle was attached
Answer:- 4
Which of the following are the important floral rewards to the animal pollinators?
(2) Fruit, where style was present
(3) Seed, where micropyle was present
(4) Seed, where funicle was attached
Answer:- 4
Which of the following are the important floral rewards to the animal pollinators?
(1) Nectar and pollen grains
(2) Floral fragrance and calcium crystals
(3) Protein pellicle and stigmatic exudates
(4) Colour and large size flower
Answer:- 1
Male gametophyte in angiosperms produces
(2) Floral fragrance and calcium crystals
(3) Protein pellicle and stigmatic exudates
(4) Colour and large size flower
Answer:- 1
Male gametophyte in angiosperms produces
(1) Three sperms
(2) Two sperms and a vegetative cell
(3) Single sperm and a vegetative cell
(4) Single sperm and two vegetative cells
Answer:- 2
Coconut water from a tender coconut is:
(2) Two sperms and a vegetative cell
(3) Single sperm and a vegetative cell
(4) Single sperm and two vegetative cells
Answer:- 2
Coconut water from a tender coconut is:
(1) Degenerated nucellus
(2) Immature embryo
(3) Free nuclear endosperm
(4) Innermost layers of the seed coat
Answer:- 3
Filiform apparatus is characteristic feature of :
(2) Immature embryo
(3) Free nuclear endosperm
(4) Innermost layers of the seed coat
Answer:- 3
Filiform apparatus is characteristic feature of :
(1) Synergids
(2) Generative cell
(3) Nucellar embryo
(4) Aleurone cell
Answer:- 1
The wheat grain has an embryo with one large. shield-shaped cotyledon known as:
(2) Generative cell
(3) Nucellar embryo
(4) Aleurone cell
Answer:- 1
The wheat grain has an embryo with one large. shield-shaped cotyledon known as:
(1) Coleoptile
(2) Epiblast
(4) Scutellum
(3) Coleorrhiza
Answer:- 4
Which one of the following fruits is parthenocarpic?
(2) Epiblast
(4) Scutellum
(3) Coleorrhiza
Answer:- 4
Which one of the following fruits is parthenocarpic?
(1) Banana
(2) Brinjal
(3) Apple
(4) Jackfruit
Answer:- 1
In angiosperms, microsporogenesis and megasporogenesis:
(2) Brinjal
(3) Apple
(4) Jackfruit
Answer:- 1
In angiosperms, microsporogenesis and megasporogenesis:
(1) occur in ovule
(2) occur in anther
(3) form gametes without further divisions
(4) involve meiosis
Answer:- 4
Flowers are unisexual in:
(2) occur in anther
(3) form gametes without further divisions
(4) involve meiosis
Answer:- 4
Flowers are unisexual in:
(1) Onion
(3) Cucumber
(2) Pea
(4) China rose
Answer:- 3
Double fertilization is characteristic feature of:-
(3) Cucumber
(2) Pea
(4) China rose
Answer:- 3
Double fertilization is characteristic feature of:-
(1) Only angiosperm
(2) Angiosperm and gymnosperm
(3) Gymnosperm and pteridophyte
(4) Angiosperm and pteridophyte
Answer:- 1
What is the ploidy of primary endosperm nucleus (PEN) in angiosperm ?
(3) Gymnosperm and pteridophyte
(4) Angiosperm and pteridophyte
Answer:- 1
What is the ploidy of primary endosperm nucleus (PEN) in angiosperm ?
(1) Haploid
(3) Triploid
(2) Diploid
(4) Hexaploid
Answer:- 3
In Pinus, endosperm cells have 30 chromosomes then how many chromosomes are present in sieve cells :-
(1) 30
(2) 60
(3) 10
(4) 15
Answer:- 2
Which of the following is true for primary endosperm nucleus (PEN) :-
(3) Triploid
(2) Diploid
(4) Hexaploid
Answer:- 3
In Pinus, endosperm cells have 30 chromosomes then how many chromosomes are present in sieve cells :-
(1) 30
(2) 60
(3) 10
(4) 15
Answer:- 2
Which of the following is true for primary endosperm nucleus (PEN) :-
(1) Fusion of two polar nudei and one male gamete
(2) Fusion of one synergid and two polar nuclei
(3) Fusion of two antipodal and one male gamete
(4) Fusion of one male gamete one synergids and one antipodal cell
Answer:- 1
Choose the correct sequence of development of female gametophyte :-
(2) Fusion of one synergid and two polar nuclei
(3) Fusion of two antipodal and one male gamete
(4) Fusion of one male gamete one synergids and one antipodal cell
Answer:- 1
Choose the correct sequence of development of female gametophyte :-
(1) Megaspore mother cell (MMC) - Megaspore tetrad megaspore - Nucellus - Female gametophyte.
(2) Nucellus-MMC-Megaspore tetrad - Megaspore - Female gametophyte
(3) Megaspore tetrad-MMC-Megaspore - Nucellus - Female gametophyte
(4) Megaspore-MMC-Megaspore tetrad-nucellus- Female gametophyte
Answer:- 2
Which of the following statements is not correct?
(2) Nucellus-MMC-Megaspore tetrad - Megaspore - Female gametophyte
(3) Megaspore tetrad-MMC-Megaspore - Nucellus - Female gametophyte
(4) Megaspore-MMC-Megaspore tetrad-nucellus- Female gametophyte
Answer:- 2
Which of the following statements is not correct?
(a) 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
(b) Insects that consume pollen or nectar without bringing about pollination are called pollen / nec- tar robbers.
(c) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil.
(d) Some reptiles have also been reported as pollinators in some plant species.
Answer:- a
Seed formation without fertilization in flowering plants involves the process of
(b) Insects that consume pollen or nectar without bringing about pollination are called pollen / nec- tar robbers.
(c) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil.
(d) Some reptiles have also been reported as pollinators in some plant species.
Answer:- a
Seed formation without fertilization in flowering plants involves the process of
(a) sporulation
(b) budding
(c) somatic hybridization
(d) apomixis
Answer:- d
Cotyledon of maize grain is called:
(b) budding
(c) somatic hybridization
(d) apomixis
Answer:- d
Cotyledon of maize grain is called:
(a) plumule
(b) coleorhiza
(c) coleoptile
(d) scutellum
Answer:- a
Which one of the following statements is not true?
(b) coleorhiza
(c) coleoptile
(d) scutellum
Answer:- a
Which one of the following statements is not true?
(a) Tapetum helps in the dehiscence of anther.
(b) Exine of pollen grains is made up of sporopollenin.
(c) Pollen grains of many species cause severe allergies.
(d) Stored pollen in liquid nitrogen can be used in the crop breeding programmes.
Answer:- a
The coconut water from tender coconut represents:
(b) Exine of pollen grains is made up of sporopollenin.
(c) Pollen grains of many species cause severe allergies.
(d) Stored pollen in liquid nitrogen can be used in the crop breeding programmes.
Answer:- a
The coconut water from tender coconut represents:
(a) endocarp
(b) fleshy mesocarp
(c) free nuclear proembryo
(d) free nuclear endosperm
Answer:- d
The ovule of an angiosperm is technically equivalent to :
(b) fleshy mesocarp
(c) free nuclear proembryo
(d) free nuclear endosperm
Answer:- d
The ovule of an angiosperm is technically equivalent to :
(a) megaspore mother cell
(b) megaspore
(d) megasporophyll
(c) megasporangium
Answer:- c
Functional megaspore in an angiosperm develops into:
(b) megaspore
(d) megasporophyll
(c) megasporangium
Answer:- c
Functional megaspore in an angiosperm develops into:
(a) Embryo
(b) Ovule
(c) Endosperm
(d) Embryo sac
Answer:- d
(b) Ovule
(c) Endosperm
(d) Embryo sac
Answer:- d