CET
1.REPRODUCTION
IN ORGANISMS
2.REPRODUCTION IN
FLOWERING PLANTS
Match the animals in column I with their life
spans in column II and choose the correct option.
Column I
A. Crow
B. Parrot
C. Crocodile
D. Dog
E. Elephant
1)
2)
3)
4)
A
1
3
2
3
B
4
1
1
4
1.
2.
3.
4.
5.
C
5
4
3
5
D
3
2
4
2
E
2
5
5
1
Column II
90 years
20 years
15 years
150 years
60years
Match the animals in column I with their life
spans in column II and choose the correct option.
Column I
A. Crow
3
B. Parrot 4
C. Crocodile5
D. Dog
2
E. Elephant 1
1)
2)
3)
4)
A
1
3
2
3
B
4
1
1
4
C
5
4
3
5
D
3
2
5
2
1.
2.
3.
4.
5.
E
2
5
4
1
Column II
90 years
20 years
15 years
150 years
60years
Match the items in column I with
column II and choose the correct option.
Column I
A. Binary fission
B. Zoospore
C. Conidium
D. Budding
E. Gemmules
A B C D E
1)1 4 5 3 2
2) 2 1 4 3 5
3) 2 1 3 4 5
4) 1 4 3 2 5
Column II
1. Algae
2. Amoeba
3. Hydra
4. Penicillium
5. Sponge
Match the items in column I with
column II and choose the correct option.
Column I
A. Binary fission 2
B. Zoospore
1
C. Conidium
4
D. Budding
3
E. Gemmules 5
A B C D E
1)1 4 5 3 2
2) 2 1 4 3 5
3) 2 1 3 4 5
4) 1 4 3 2 5
Column II
1. Algae
2. Amoeba
3. Hydra
4. Penicillium
5. Sponge
One of the following is not a method
of asexual reproduction
1)Sporulation
2)Gemmule formation
3)Budding
4)Conjugation
One of the following is not a method
of asexual reproduction
1)Sporulation
2)Gemmule formation
3)Budding
4)Conjugation
An Amoeba cell divides into two new
Amoebae after each cell division. How
many cell divisions are required for
producing sixty-four Amoeba cells from
a single Amoeba?
1) 5
2) 6
3) 32
4) 16
An Amoeba cell divides into two new
Amoebae after each cell division. How
many cell divisions are required for
producing sixty-four Amoeba cells from
a single Amoeba?
1) 5
2) 6
3) 32
4) 16
1248163264
The asexual reproductive structure
of Chlamydomonas is ____i____ while that
of ____ii____ is conidia. Which of the following
options completes the given statement?
1)
2)
3)
4)
i
gemmule
zoospore
gemmule
zoospore
ii
Penicillium
Penicillium
Sycon
Sycon
The asexual reproductive structure
of Chlamydomonas is ____i____ while that
of ____ii____ is conidia. Which of the following
options completes the given statement?
1)
2)
3)
4)
i
gemmule
zoospore
gemmule
zoospore
ii
Penicillium
Penicillium
Sycon
Sycon
Which of the following vegetative
propagules are found in Agave and
Water hyacinth plants respectively?
1) Bulbil and Runner
2) Offset and Bulbil
3) Bulbil and Offset
4) Sucker and offset
Vegetative propagules
Examples
Runner
Rhizome
Sucker
Tuber (eyes)
Offset
Bulb
Bulbils
Epiphyllous buds
Stolon
Adventitious tuberous roots
Stem cutting
Grass, Gladiolus, oxalis
Ginger, Banana
Chrysanthemum
Potato
Water hyacinth(Eichhornia),Pistia
Onion
Agave
Bryophyllum
Marsilea
Dahlia
Sugarcane
Which of the following vegetative
propagules are found in Agave and
Water hyacinth plants respectively?
1) Bulbil and Runner
2) Offset and Bulbil
3) Bulbil and Offset
4) Sucker and offset
In which of the following pairs of
organisms does the process of
menstrual cycle occur?
1)Monkeys and apes
2)Apes and dog
3)Dogs and cows
4)Deers and rats
In which of the following pairs of
organisms does the process of
menstrual cycle occur?
1)Monkeys and apes
2)Apes and dog
3)Dogs and cows
4)Deers and rats
Which of the following statements is correct
regarding the events that take place during sexual
reproduction?
1) During post fertilization events, gamete and
zygote formation occurs.
2) During pre-fertilization events, the formation
and transfer of gametes occurs.
3) During pre-fertilization events, the zygote
formation and development of embryo occurs.
4) During post fertilization events, the transfer of
gamete and development of embryo occurs.
Which of the following statements is correct
regarding the events that take place during sexual
reproduction?
1) During post fertilization events, gamete and
zygote formation occurs.
2) During pre-fertilization events, the
formation and transfer of gametes occurs.
3) During pre-fertilization events, the zygote
formation and development of embryo occurs.
4) During post fertilization events, the transfer of
gamete and development of embryo occurs.
The terms i and ii are used to
denote the bisexual condition in fungi and
plants. Which of the following options
completes the given statement?
i
1)
2)
3)
4)
homothallic
heterothallic
heterothallic
homothallic
ii
monoecious
monoecious
dioecious
dioecious
The terms i and ii are used to
denote the bisexual condition in fungi and
plants. Which of the following options
completes the given statement?
i
1)
2)
3)
4)
homothallic
heterothallic
heterothallic
homothallic
ii
monoecious
monoecious
dioecious
dioecious
The heterothallic and dioecious
condition is not used to describe
1)Staminate flower
2)Pistillate flower
3)Bisexual condition
4)Unisexual condition
The heterothallic and dioecious
condition is not used to describe
1)Staminate flower
2)Pistillate flower
3)Bisexual condition
4)Unisexual condition
Which of the following statements is correct
regarding the bisexual and unisexual conditions in
plants?
1)Heterothallic and dioecious terms are used to
describe bisexual condition in plants.
2)Heterothallic and monoecious terms are used to
describe unisexual condition in plants.
3)Homothallic and dioecious terms are used to
describe unisexual condition in plants.
4)Homothallic and monoecious terms are used to
describe bisexual condition in plants.
Which of the following statements is correct
regarding the bisexual and unisexual conditions in
plants?
1)Heterothallic and dioecious terms are used to
describe bisexual condition in plants.
2)Heterothallic and monoecious terms are used to
describe unisexual condition in plants.
3)Homothallic and dioecious terms are used to
describe unisexual condition in plants.
4)Homothallic and monoecious terms are used to
describe bisexual condition in plants.
Self-fertilisation takes place in____i____,
while cross-fertilisation takes place in
____ii____.The information in which
alternative completes the given statement?
i
ii
1) Planaria
earthworms
2) earthworms
rabbits
3) rabbits
butterflies
4) butterflies
Planaria
Self-fertilisation takes place in____i____,
while cross-fertilisation takes place in
____ii____.The information in which
alternative completes the given statement?
i
ii
1)
Planaria
earthworms
2)
3)
4)
earthworms
rabbits
butterflies
rabbits
butterflies
Planaria
The plants such as i and date palm are
called ii . The staminate and pistillate
flowers in these plants are found in separate
individuals. Which of the following options
completes the given statement?
1)
2)
3)
4)
i
papaya
papaya
coconut
coconut
ii
monoecious
dioecious
dioecious
monoecious
The plants such as i and date palm are
called ii . The staminate and pistillate
flowers in these plants are found in separate
individuals. Which of the following options
completes the given statement?
1)
i
papaya
ii
monoecious
2)
papaya
dioecious
3)
4)
coconut
coconut
dioecious
monoecious
Which of the following organisms
is not hermaphrodite?
1)Leech
2)Earthworm
3)Tapeworm
4)Cockroach
Which of the following organism
is not hermaphrodite?
1)Leech
2)Earthworm
3)Tapeworm
4)Cockroach
The meiocytes of a dog contain 78
chromosomes. The number of
chromosomes present in its zygote will
be
1)
2)
3)
4)
19
39
78
156
The meiocytes of a dog contain 78
chromosomes. The number of
chromosomes present in its zygote will
be
1) 19
2) 39
3) 78
4) 156
Organisms belonging to fungi, algae, and
bryophytes are ____i____and produce gametes
by the process of ____ii____. Which of the
following options completes the given statement?
1)
2)
3)
4)
i
diploid
haploid
diploid
haploid
ii
mitosis
mitosis
meiosis
meiosis
Organisms belonging to fungi, algae, and
bryophytes are ____i____and produce gametes
by the process of ____ii____. Which of the
following options completes the given statement?
1)
2)
3)
4)
i
diploid
haploid
diploid
haploid
ii
mitosis
mitosis
meiosis
meiosis
Which of the following statements is correct
regarding the haplontic life cycle?
1)Zygote divides meiotically to form
haploid spores.
2)Zygote divides meiotically to form diploid
spores.
3)Zygote divides mitotically to form haploid
spores.
4)Zygote divides mitotically to form diploid
spores.
Which of the following statements is correct
regarding the haplontic life cycle?
1)Zygote divides meiotically to form
haploid spores.
2)Zygote divides meiotically to form diploid
spores.
3)Zygote divides mitotically to form haploid
spores.
4)Zygote divides mitotically to form diploid
spores.
The life cycle of algae and fungi is haplontic.
Which of the following statements is correct
regarding haplontic life?
1) Adult is diploid and shows gametic meiosis.
2) Adult is haploid and shows gametic
meiosis.
3) Adult is diploid and shows zygotic meiosis.
4) Adult is haploid and shows zygotic meiosis.
The life cycle of algae and fungi is haplontic.
Which of the following statements is correct
regarding haplontic life?
1) Adult is diploid and shows gametic meiosis.
2) Adult is haploid and shows gametic
meiosis.
3) Adult is diploid and shows zygotic meiosis.
4) Adult is haploid and shows zygotic meiosis.
Development of fruit without
fertilization is called
1) Apomixis
2) Amphimixis
3)Parthenocarpy
4)Parthenogenesis
Development of fruit without
fertilization is called
1) Apomixis
2) Amphimixis
3)Parthenocarpy
4)Parthenogenesis
Animals that do not give birth to
young ones are
1)Oviparous
2)Ovoviviparous
3)Viviparous
4)Ovoviviparous and viviparous
Animals that do not give birth to
young ones are
1)Oviparous
2)Ovoviviparous
3)Viviparous
4)Ovoviviparous and viviparous
Which labelled structure in the diagram of
the TS of dithecous anther provides
nourishment to the developing pollen
grains?
1) I 2) II 3) III 4) IV
I.Epidermis
II.Endothecium
III.Pollen sac
IV.Tapetum
Which labelled structure in the diagram of
the TS of dithecous anther provides
nourishment to the developing pollen
grains?
1) I 2) II 3) III 4) IV
In flowering plants, archesporium gives
rise to
1) Wall of sporangium
2) Wall and Sporogenous tissue
3) Tapetum and Sporogenous tissue
4) Tapetum & Endothecium
DEVELOPMENT OF ANTHER
ARCHESPORIAL CELLS(2n)
Primary parietal cells
(produce 4 wall layers
of microsporangia)
Epidermis
Endothecium
Middle layer of cells
Tapetum
primary sporogenous cells
Sporogenous tissue
mitosis
Microspore mother cell
meiosis
Microspore tetrad(n)
Microspore (pollen grain)
In flowering plants, archesporium gives
rise to
1) Wall of sporangium
2)Wall and Sporogenous tissue
3) Tapetum and Sporogenous tissue
4) Tapetum & Endothecium
Which sequence represents the order of the
structures that will be formed during the process
of microsporogenesis?
1) Sporogenous tissue − Pollen mother cell −
Microspore tetrad − Pollen grain
2) Pollen grain − Microspore tetrad − Pollen
mother cell − Sporogenous tissue
3) Sporogenous tissue − Microspore tetrad −
Pollen mother cell − Pollen grain
4) Pollen grain − Pollen mother cell − Microspore
tetrad − Sporogenous tissue
DEVELOPMENT OF ANTHER
ARCHESPORIAL CELLS(2n)
Primary parietal cells
(produce 4 wall layers
of microsporangia)
Epidermis
Endothecium
Middle layer of cells
Tapetum
primary sporogenous cells
Sporogenous tissue
mitosis
Microspore mother cell
meiosis
Microspore tetrad(n)
Microspore (pollen grain)
Which sequence represents the order of the
structures that will be formed during the process
of microsporogenesis?
1) Sporogenous tissue − Pollen mother cell −
Microspore tetrad − Pollen grain
2) Pollen grain − Microspore tetrad − Pollen
mother cell − Sporogenous tissue
3) Sporogenous tissue − Microspore tetrad −
Pollen mother cell − Pollen grain
4) Pollen grain − Pollen mother cell − Microspore
tetrad − Sporogenous tissue
During the formation of pollen grains, a
microspore mother cell undergoes
1) One meiotic division
2) one mitotic division
3) one meiotic and three mitotic
division
4) only three mitotic division
DEVELOPMENT OF ANTHER
ARCHESPORIAL CELLS(2n)
Primary parietal cells
(produce 4 wall layers
of microsporangia)
Epidermis
Endothecium
Middle layer of cells
Tapetum
primary sporogenous cells
Sporogenous tissue
mitosis
Microspore mother cell
meiosis
Microspore tetrad(n)
Microspore (pollen grain)
During the formation of pollen grains, a
microspore mother cell undergoes
1) One meiotic division
2) one mitotic division
3) one meiotic and three mitotic
division
4) only three mitotic division
Number of meiotic divisions required
to produce 100 microspores in
angiosperms is
1) 25
2) 50
3) 75
4) 100
Number of meiotic divisions required
to produce 100 microspores in
angiosperms is
1 microsporemother cell – 4microspores
1) 25 25 microsporemother cells =25 x 4 = 100
2) 50
3) 75
4) 100
The wall of pollen grain is known as
sporoderm. The two layers of
sporoderm are
1) Integument and Nucellus
2) Pericarp and Perisperm
3) Testa and Tegmen
4) Exine and Intine
The wall of pollen grain is known as
sporoderm. The two layers of
sporoderm are
1) Integument and Nucellus
2) Pericarp and Perisperm
3) Testa and Tegmen
4) Exine and Intine
Which of the following statements is
correct regarding pollen grains?
1) The outermost layer of pollen is exine,
which is made up of pectin.
2) The innermost layer of pollen is intine,
which is made up of pectin.
3) The outermost layer of pollen is intine,
which is made up of sporopollenin.
4) The innermost layer of pollen is exine,
which is made up of sporopollenin.
Which of the following statements is
correct regarding pollen grains?
1) The outermost layer of pollen is exine,
which is made up of pectin.
2) The innermost layer of pollen is
intine, which is made up of pectin.
3) The outermost layer of pollen is intine,
which is made up of sporopollenin.
4) The innermost layer of pollen is exine,
which is made up of sporopollenin.
The plant part which consists of two
generations, one within the other is
1) germinated pollen grain
2) Embryo
3) ovule
4) seed
The plant part which consists of two
generations, one within the other is
1) germinated pollen grain
2) Embryo
3) ovule
4) seed
Which of the following statements is correct
regarding megasporogenesis?
1) Single megaspore mother cell in nucellus
undergoes mitosis to produce four megaspores.
2) Single megaspore mother cell in the nucellus
undergoes meiosis to produce four megaspores.
3) Single microspore mother cell of nucellus
undergoes mitosis to produce four microspores.
4) Single microspore mother cell of nucellus
undergoes meiosis to produce four microspores.
MEGASPOROGENISIS AND DEVELOPMENT OF FEMALE GAMETOPHYTE
ARCHESPORIAL CELL
MEGASPORE MOTHER CELL
(meiosis)
FOUR MEGASPORES
(3 megaspores degenerate)
FUNCTIONAL MEGASPORE (EMBRYOSAC)
(Female gametophyte)
NUCLEUS OF EMBRYO SAC
(3 mitotic division)
8 NUCLEATED & 7 CELLED EMBRYO SAC
3 ANTIPODALS
(Chalazal end)
2 POLAR NUCLEI 2 SYNERGIDS + 1 EGG CELL
(Central)
(egg aparatus)
(micropylar end)
Which of the following statements is correct
regarding megasporogenesis?
1) Single megaspore mother cell in nucellus
undergoes mitosis to produce four megaspores.
2) Single megaspore mother cell in the nucellus
undergoes meiosis to produce four megaspores.
3) Single microspore mother cell of nucellus
undergoes mitosis to produce four microspores.
4) Single microspore mother cell of nucellus
undergoes meiosis to produce four microspores.
During the formation of embryo sac,
the functional megaspore undergoes
1) Two mitotic divisions
2) Two meiotic divisions
3) Three meiotic divisions
4) Three mitotic divisions
MEGASPOROGENISIS AND DEVELOPMENT OF FEMALE GAMETOPHYTE
ARCHESPORIAL CELL
MEGASPORE MOTHER CELL
(meiosis)
FOUR MEGASPORES
(3 megaspores degenerate)
FUNCTIONAL MEGASPORE (EMBRYOSAC)
(Female gametophyte)
NUCLEUS OF EMBRYO SAC
(3 mitotic division)
8 NUCLEATED & 7 CELLED EMBRYO SAC
3 ANTIPODALS
(Chalazal end)
2 POLAR NUCLEI
(Central)
2 SYNERGIDS + 1 EGG CELL
(egg aparatus)
(micropylar end)
During the formation of embryo sac,
the functional megaspore undergoes
1) Two mitotic divisions
2) Two meiotic divisions
3) Three meiotic divisions
4)Three mitotic divisions
Which of the following embryosac
diagrams is labelled correctly?
1
2
3
4
Which of the following embryo sac
diagrams is labelled correctly?
1
2
3
4
Which one of the following pairs of
plant structures have haploid number
of chromosomes?
1) Nucellus and antipodal cells
2) Egg cell and central cell of embryo
sac
3) Megaspore mother cell and
antipodal cell
4) Egg cell and antipodal cell
Which one of the following pairs of
plant structures have haploid number
of chromosomes?
1) Nucellus and antipodal cells
2) Egg cell and central cell of embryo
sac
3) Megaspore mother cell and
antipodal cell
4) Egg cell and antipodal cell
The only cells that undergo meiotic
division in angiosperms are
1) Nucellar cells and tapetal cells
2) Megaspore mother cell and
Microspore mother cell
3) Synergids and antipodals
4) Integument cells and endothecial
cells
The only cells that undergo meiotic
division in angiosperms are
1) Nucellar cells and tapetal cells
2) Megaspore mother cell and
Microspore mother cell
3) Synergids and antipodals
4) Integument cells and endothecial
cells
Unisexuality of flowers prevent
1) Autogamy and geitonogamy.
2) Geitonogamy and xenogamy
3) Gietonogamy but not xenogamy
4)Homogamy but not geitonogamy
Unisexuality of flowers prevent
1) Autogamy and geitonogamy.
2) Geitonogamy and xenogamy
3) Gietonogamy but not xenogamy
4)Homogamy but not geitonogamy
Which one of the following type of
pollination is only autogamous?
1) Xenogamy
2) Chasmogamy
3) Cleistogamy
4) Dichogamy
Which one of the following type of
pollination is only autogamous?
1) Xenogamy
2) Chasmogamy
3)Cleistogamy
4) Dichogamy
Which of the following conditions will be
true if male and female flowers are present
in different plants?
1) Only autogamy is prevented.
2) Only xenogamy is prevented.
3) Both autogamy and geitonogamy is
prevented.
4) Both geitonogamy and xenogamy is
prevented.
Which of the following conditions will be
true if male and female flowers are present
in different plants?
1) Only autogamy is prevented.
2) Only xenogamy is prevented.
3) Both autogamy and geitonogamy is
prevented.
4) Both geitonogamy and xenogamy is
prevented.
Heterozygosity is produced by the
1) Cleistogamy
2) Geitonogamy
3) Autogamy
4) Xenogamy
Heterozygosity is produced by the
1) Cleistogamy
2) Geitonogamy
3) Autogamy
4)Xenogamy
Device for self pollination is
1) Herkogamy
2) Dichogamy
3) Cleistogamy
4) Dicliny
Device for self pollination is
1) Herkogamy
2) Dichogamy
3) Cleistogamy
4) Dicliny
Which of the following features
is not found in wind pollinated
flowers? (anemophilous flowers)
1) Well exposed stamens
2) Light and non-sticky pollen grains
3) Brightly coloured and showy petals
4) Pollen production in huge quantity
Which of the following features
is not found in wind pollinated
flowers? (anemophilous flowers)
1) Well exposed stamens
2) Light and non-sticky pollen grains
3) Brightly coloured and showy petals
4) Pollen production in huge quantity
Which of the following statements are correct?
I) Tapetum nourishes the developing pollen grain.
II) Hylum represents the junction between ovule and
funicle.
III) In aquatic plants such as water hyacinth and water
lily, pollination is by water.
IV) The primary endosperm nucleus is triploid
1) I & II are correct but III & IV are incorrect.
2) I, II & IV are correct but III is incorrect.
3) II, III & IV are correct but I is incorrect.
4) I & IV are correct but II & III are incorrect.
Which of the following statements are correct?
I) Tapetum nourishes the developing pollen grain.
II) Hylum represents the junction between ovule and
funicle.
III) In aquatic plants such as water hyacinth and water
lily, pollination is by water.
IV) The primary endosperm nucleus is triploid
1) I & II are correct but III & IV are incorrect.
2) I, II & IV are correct but III is incorrect.
3) II, III & IV are correct but I is incorrect.
4) I & IV are correct but II & III are incorrect.
Pollination by birds is
1) Malacophily
2) Ornithophily
3) Chiropterophily
4) Myrmecophily
Pollination by birds is
1) Malacophily
2)Ornithophily
3) Chiropterophily
4) Myrmecophily
Which of the following statement is wrong?
1) Unisexual flower producing plants are
also called dioecious plants
2) Homogamy and geitonogamy do not
occur in papaya
3) In castor and maize, geitonomy is
prevented but not homogamy
4) Self sterility is seen in potato, tobacco
and petunia
Which of the following statement is wrong?
1) Unisexual flower producing plants are
also called dioecious plants
2) Homogamy and geitonogamy do not
occur in papaya
3) In castor and maize, geitonomy is
prevented but not homogamy
4) Self sterility is seen in potato, tobacco
and petunia
Double fertilization or triple fusion leading
to initiation of endosperm in angiosperm
requires
1) Fusion of 4 or more polar nuclei and a
male gamete only.
2) Fusion of 2 polar nuclei and a male
gamete only.
3) Fusion of 1 polar nuclei and a male
gamete only.
4) It differs in different angiosperms.
Double fertilization or triple fusion leading
to initiation of endosperm in angiosperm
requires
1) Fusion of 4 or more polar nuclei and a
male gamete only.
2) Fusion of 2 polar nuclei and a male
gamete only.
3) Fusion of 1 polar nuclei and a male
gamete only.
4) It differs in different angiosperms.
Double fertilization involves
1) Syngamy + Double fusion
2) Karyogamy + Synkaryon
3) Syngamy + Syncarpy
4) Syngamy + Triple fusion
Double fertilization involves
1) Syngamy + Double fusion
2) Karyogamy + Synkaryon
3) Syngamy + Syncarpy
4) Syngamy + Triple fusion
In a fertilized ovule, the antipodal cells are
i , zygote is diploid, and the endosperm is
ii . Which of the following options
completes the given statement?
i
ii
1)
2)
3)
4)
diploid
diploid
haploid
haploid
triploid
haploid
triploid
diploid
In a fertilized ovule, the antipodal cells are
i , zygote is diploid, and the endosperm is
ii . Which of the following options
completes the given statement?
i
ii
1)
2)
diploid
diploid
triploid
haploid
3)
haploid
triploid
4)
haploid
diploid
Which cell gives rise to endosperm
after fusion with one of the two male
gametes?
1) Synergid cell
2) Antipodal cell
3) Central cell
4) Generative cell
Which cell gives rise to endosperm
after fusion with one of the two male
gametes?
1) Synergid cell
2) Antipodal cell
3) Central cell
4) Generative cell
Endosperm is consumed by developing
embryo in the seeds of
1) Coconut
2) Castor
3) Pea
4) Maize
Endosperm is consumed by developing
embryo in the seeds of
1) Coconut
2) Castor
3) Pea
4) Maize
The seeds of some plants such as black
pepper and i contain remnants of
persistent nucellus called ii .
Which of the following options completes
the given statement?
i
ii
1)
Pea
pericarp
2)
Pea
perisperm
3)
Beet
pericarp
4)
Beet
perisperm
The seeds of some plants such as black
pepper and i contain remnants of
persistent nucellus called ii .
Which of the following options completes
the given statement?
i
ii
1)
Pea
pericarp
2)
Pea
perisperm
3)
Beet
pericarp
4)
Beet
perisperm
In which of the following examples of
fruits the thalamus does not contribute
to the fruit formation?
a) Apple
b) Cashew
c) Tomato
d) Strawberry
In which of the following examples of
fruits the thalamus does not contribute
to the fruit formation?
a) Apple
b) Cashew
c) Tomato
d) Strawberry
Which of the following statements
is incorrect regarding the structure
of the seed of maize?
1) Plumule is surrounded by a protective sheath
of coleoptile
2) Pericarp forms the outer covering of the seed.
3) Radicle is covered by a protective sheath of
coleorrhiza.
4) Cotyledon is located in the centre of the seed.
Which of the following statements
is incorrect regarding the structure
of the seed of maize?
1) Plumule is surrounded by a protective sheath
of coleoptile
2) Pericarp forms the outer covering of the seed.
3) Radicle is covered by a protective sheath of
coleorrhiza.
4) Cotyledon is located in the centre of the seed.
Apomictic embryos in citrus arise from
1) Synergids
2) Antipodal cells
3) Haploid megaspore
4) Maternal sporophytic tissue in ovule
Apomictic embryos in citrus arise from
1) Synergids
2) Antipodal cells
3) Haploid megaspore
4) Maternal sporophytic tissue in ovule
Formation of embryo directly from
nucellus and integument is
1) Apospory
2) Apogamy
3) Amphimixis
4) Adventitive polyembryony.
Formation of embryo directly from
nucellus and integument is
1) Apospory (2nmegaspore/diplospory)
2) Apogamy (haploid gametophyte)
3) Amphimixis (synkaryon)
4) Adventitive polyembryony.
Which of the following is not included
under apomixis?
1) Apogamy
2) Apospory
3) Adventitive Polyembryony
4) Parthenogamy
Which of the following is not included
under apomixis?
1) Apogamy
2) Apospory
3) Adventitive Polyembryony
4) Parthenogamy (secondary nucleus)
The polyembryo developed from
secondary nucleus is called
1) Parthenogenesis
2) Parthenogamy
3) Diplospory
4) Adventitive Polyembryony
The polyembryo developed from
secondary nucleus is called
1) Parthenogenesis
2)Parthenogamy
3) Diplospory
4) Adventitive Polyembryony
Development of a sporophyte directly
from the gametophytic tissue is called
1)Apospory
2)Apogamy
3)Parthenogenesis
4)Parthenocarpy
Development of a sporophyte directly
from the gametophytic tissue is called
1)Apospory
2)Apogamy
3)Parthenogenesis
4)Parthenocarpy
Which of the following statements is
correct for emasculation?
1)Wrapping of flower in a bag to prevent
pollination
2) Production of fruit without the process
of fertilization
3) Removal of anther from bisexual flower
without affecting pistil
4) Combining two different varieties of
plants to produce a new hybrid
Which of the following statements is
correct for emasculation?
1)Wrapping of flower in a bag to prevent
pollination
2) Production of fruit without the process
of fertilization
3) Removal of anther from bisexual flower
without affecting pistil
4) Combining two different varieties of
plants to produce a new hybrid
Which of the following pairs of asexual
reproductive structures is found in
animals?
1)Conidia and Buds
2)Buds and Gemmules
3)Zoospores and Conidia
4)Gemmules and Zoospores
Which of the following pairs of asexual
reproductive structures is found in
animals?
1)Conidia and Buds
2)Buds and Gemmules
3)Zoospores and Conidia
4)Gemmules and Zoospores