Multiple Choice Questions
How do Organisms Reproduce?
Practice Questions with Answers
Total 138 questions available
Q. 1
What is the surgical method of contraception used in human males?
A
TubectomyB
VasectomyC
CondomsD
Contraceptive pillsClick an option to check your answer
Q. 2
Fertilisation results immediately in the formation of?
A
a placentaB
an embryoC
a foetusD
a zygoteClick an option to check your answer
Q. 3
Which of the following is the correct sequence of events of sexual reproduction in a flower?
A
Pollination, fertilisation, embryo, seedlingB
Embryo, seedling, pollination, fertilisationC
Pollination, fertilisation, seedling, embryoD
Seedling, embryo, fertilisation, pollinationClick an option to check your answer
Q. 4
What role does the rapidity of asexual reproduction play in ecosystems?
A
It promotes genetic variation.B
It allows organisms to compete more effectively.C
It hinders population growth.D
It requires more resources.Click an option to check your answer
Q. 5
How many parents are involved in the process of sexual reproduction?
A
One male parentB
One female parentC
One parent of any genderD
One male and one female parentClick an option to check your answer
Q. 6
Copper T and Loops are
A
Contaminating devicesB
Conducive devicesC
Contraceptive devicesD
Conventional devicesClick an option to check your answer
Q. 7
Which of the following is the correct sequence regarding sexual reproduction in a flowering plant?
A
Pollination, fertilisation, embryo, seedlingB
Pollination, fertilisation, seedling, embryoC
Embryo, seedling, pollination, fertilisationD
Seedling, embryo, fertilisation, pollinationClick an option to check your answer
Q. 8
A feature of reproduction that is common to
Amoeba, Spirogyra and yeast is that:
A
they reproduce only sexually.B
they are all multicellular.C
they reproduce asexually.D
they are all unicellular.Click an option to check your answer
Q. 9
Which of the following is found in men?
A
PlacentaB
Vas deferensC
Fallopian tubeD
OvumClick an option to check your answer
Q. 10
Which of the statements is incorrect?
A
The secondary nuclei form a polar nucleus prior to fertilisation.B
Androecium is a part of the carpel.C
All of the aboveD
The filiform apparatus blocks the entry of pollen and sperm cells.Click an option to check your answer
Q. 11
What is the term for the period during adolescence when reproductive tissues begin to mature?
A
Puberty.B
Adulthood.C
Germination.D
ReproductionClick an option to check your answer
Q. 12
The place where fertilization take place in the human body is
A
vaginaB
UterusC
OviductD
OvaryClick an option to check your answer
Q. 13
Where are sperms formed in the human body?
A
TestisB
Prostate glandC
Vas deferensD
OvaryClick an option to check your answer
Q. 14
Male reproductive organ in flowering plant is
A
OvaryB
CarpelC
StamenD
CorollaClick an option to check your answer
Q. 15
The specific reproductive part in Rhizopus responsible for reproduction is:
A
sporadicB
sporangiaC
hyphaeD
stickClick an option to check your answer
Q. 16
The movement of sperm is due to the ____ present in them.
A
glucoseB
all of theseC
sucroseD
fructoseClick an option to check your answer
Q. 17
What is the disadvantage of parthenogenesis?
A
Lack of adaptabilityB
Retention of genotypeC
Variety in populationD
Wastage of germplasmClick an option to check your answer
Q. 18
Which of the following sterilisation methods is
permanent?
A
VasectomyB
Tubal SterilisationC
IUDD
Both (a) and (b)Click an option to check your answer
Q. 19
In human males, the testes lie in the scrotum,
because it helps in the:
A
formation of spermB
gametes (d)C
process of matingD
easy transfer of gametesClick an option to check your answer
Q. 20
What advantage does asexual reproduction offer over sexual reproduction?
A
Greater genetic diversityB
Involvement of two gendersC
Slower reproductive rateD
Rapid reproduction without mating.Click an option to check your answer
Q. 21
Fertiization will not take place if -
A
the vas deferens in the male is blockedB
the fallopian tube in the female is blockedC
both (A) and (B)D
none of the aboveClick an option to check your answer
Q. 22
Which of the following does not happen in asexual reproduction?
A
FertilizationB
BuddingC
Multiple fissionD
Binary fissionClick an option to check your answer
Q. 23
Which of the following statements describes a characteristic of asexual reproduction?
A
Offspring arise from the fusion of gametes.B
Offspring arise from a single organism.C
Both males and females are required for reproduction.D
Offspring inherit genetic material from two parents.Click an option to check your answer
Q. 24
Hydra and Planaria can be cut into any number of pieces and each piece grows into a complete organism. This is known as:
A
regenerationB
fragmentationC
buddingD
speciationClick an option to check your answer
Q. 25
How does the mechanism and process of reproduction vary among species?
A
All species reproduce through the same methodB
Mechanisms and processes vary across different speciesC
Mechanisms are the same, but processes differD
Only plants exhibit reproductive processesClick an option to check your answer
Q. 26
Which organisms can undergo asexual reproduction?
A
Only prokaryotesB
Only animalsC
Both plants and fungi.D
Only eukaryotesClick an option to check your answer
Q. 27
Why are pollens spiny?
A
Help in FertilizationB
For easy pollinationC
To attach to bodies of insectsD
AppearanceClick an option to check your answer
Q. 28
A feature of reproduction that is common to Amoeba, Spirogyra and Yeast are that
A
they reproduce asexually.B
they reproduce only sexually.C
they are all multicellular.D
they are all unicellular.Click an option to check your answer
Q. 29
Which of the following diseases is transmitted sexually?
A
SyphilisB
ElephantiasisC
JaundiceD
Sleeping sicknessClick an option to check your answer
Q. 30
Variation patterns are studied in the offspring of
sexually and asexually reproducing organisms. State your observation:
A
Cannot be determined.B
No difference in variation is observed in offspring ofsexually and asexually reproducing organisms.C
More variations are observed in the offspring of asexually reproducing organisms.D
More variations are observed in the offspring of sexually reproducing organisms.Click an option to check your answer
Q. 31
Offspring formed by asexual
reproduction have greater similarity among
themselves because:
(i) Asexual reproduction involves only one parent.
(ii) Asexual reproduction does not involve gametes.
(iii) Asexual reproduction occurs before sexual reproduction.
(iv) Asexual reproduction occurs after sexual reproduction.
(i) Asexual reproduction involves only one parent.
(ii) Asexual reproduction does not involve gametes.
(iii) Asexual reproduction occurs before sexual reproduction.
(iv) Asexual reproduction occurs after sexual reproduction.
A
(iii) and (iv)B
(ii) and (iv)C
(i) and (iii)D
(i) and (ii)Click an option to check your answer
Q. 32
In amoeba the splitting of the two cells during division can take place in ________ plane.
A
perpendicularB
singleC
anyD
directionalClick an option to check your answer
Q. 33
Tissue culture technique is used for
A
rapid multiplication of plantB
multiplication of sterile plantsC
growing disease free plantD
all of these.Click an option to check your answer
Q. 34
The correct sequence of organs in the male reproductive system for transport of sperms is:
A
testis → ureter → urethraB
testis → urethra → ureterC
testis → vas deferens → ureterD
testis → vas deferens → urethraClick an option to check your answer
Q. 35
Which of the following statements is NOT true
regarding asexual reproduction in plants?
A
Plants that reproduce asexually have greater genetic diversity than those who reproduce sexually.B
Plants that reproduce asexually are more stable than those who reproduce sexually.C
Plants that reproduce asexually create offspring that are identical to the parent plant.D
Plants that reproduce asexually reach maturity faster than those who reproduce sexually.Click an option to check your answer
Q. 36
Length of pollen tube depends on the distance between
A
pollen grain on upper surface of stigma and ovuleB
upper surface of stigma and lower part of styleC
pollen grain and upper surface of stigmaD
pollen grain in anther and upper surface of stigmaClick an option to check your answer
Q. 37
A fertilized ovule develops into a _____ in an angiosperm plant.
A
cotyledonB
seedC
fruitD
flowerClick an option to check your answer
Q. 38
What is a characteristic feature of sexual reproduction concerning genetic diversity?
A
Offspring have identical genetic makeup to their parents.B
Offspring exhibit less variation due to limited genetic material.C
Offspring inherit traits from only one parent.D
Offspring have a mix of genetic material from both parents, leading to increased variation.Click an option to check your answer
Q. 39
The development of fruit after fertilization occurs from:
A
ovaryB
styleC
androeciumD
stigmaClick an option to check your answer
Q. 40
Buds produced in the notches along the leaf margin of Bryophyllum fall on the soil and develop into new plants. This is an example of:
A
vegetationB
clone formationC
sexual reproductionD
vegetative propagationClick an option to check your answer
Q. 41
Vegetative propagation refers to the formation of new plants from the following existing organs of the old plants:
A
stems, roots and flowersB
stems, leaves and flowersC
stems, flowers and fruitsD
stems, roots and leavesClick an option to check your answer
Q. 42
In sexual reproduction, which gender typically gives birth to new individuals?
A
MalesB
Females.C
Both males and femalesD
Neither males nor femalesClick an option to check your answer
Q. 43
What happens to the zygote in sexual reproduction?
A
It remains dormant.B
It undergoes fragmentation.C
It multiplies repeatedly and undergoes specific changesD
It forms spores.Click an option to check your answer
Q. 44
What contributes to the variations in populations of organisms?
A
DNA copying is error-free.B
DNA copying is not error-free.C
Protein formation.D
Involvement of only one parent.Click an option to check your answer
Q. 45
The method commonly used to produce new rose plants is
A
graftingB
cuttingC
tissue cultureD
layeringClick an option to check your answer
Q. 46
Which of the following is a product of meiosis?
A
Microspore mother cellB
Endosperm nucleus (primary)C
Megaspore mother cellD
MegasporeClick an option to check your answer
Q. 47
Which structure in a plant is the male reproductive part producing yellowish pollen grains?
A
Petal.B
Stamen.C
Pistil.D
Carpel.Click an option to check your answer
Q. 48
A feature of reproduction that is common to
Amoeba, Yeast and Bacterium is that :
A
they reproduce only sexuallyB
they reproduce asexuallyC
they are all unicellularD
they are all multicellularClick an option to check your answer
Q. 49
The male human reproductive system consists of
the testes and the male accessory glands.
Which of the following statements about male
accessory glands is false?
A
The prostate gland also synthesises sperm.B
The prostate gland and seminal vesicles are found outside the testes.C
The secretions of prostate gland and seminal vesicles make semen fluid and provide nutrition.D
Male accessory glands contribute to semen.Click an option to check your answer
Q. 50
Where are the reproductive parts of angiosperms located?
A
Flower.B
Pistil.C
Stigma.D
Fruit.Click an option to check your answer
Q. 51
Which among the following diseases is not
sexually transmitted ?
A
GonorrhoeaB
HepatitisC
SyphilisD
HIV-AIDSClick an option to check your answer
Q. 52
In a flower, the parts that produce male and female
gametes (germ cells) are:
A
stamen and styleB
anther and ovaryC
filament and stigmaD
stamen and antherClick an option to check your answer
Q. 53
Which among the following does not reproduce by spore formation?
A
Penicillium fungusB
Rhizopus fungusC
Yeast fungusD
Mucor fungusClick an option to check your answer
Q. 54
In humans, gestation is completed in -
A
120 weeksB
240 days.C
60 weeksD
40 weeksClick an option to check your answer
Q. 55
What is another term used to describe organisms that produce both male and female gametes?
A
UnisexualB
AsexualC
HermaphroditeD
BisexualClick an option to check your answer
Q. 56
The offspring formed by sexual reproduction exhibit more variations because _________ .
A
sexual reproduction is a lengthy processB
genetic material comes from two parents of the same species.C
genetic material comes from two parents of different speciesD
genetic material comes only from one parentClick an option to check your answer
Q. 57
Eggs starts developing in human female
A
Only after her birthB
When she attains pubertyC
When she is in her mother’s wombD
After the first menstruationClick an option to check your answer
Q. 58
Which among the following statements are true
for unisexual flowers?
(i) They possess both stamen and pistil.
(ii) They possess either stamen or pistil.
(iii) They exhibit cross pollination.
(iv) Unisexual flowers possessing only stamens cannot produce fruits.
(i) They possess both stamen and pistil.
(ii) They possess either stamen or pistil.
(iii) They exhibit cross pollination.
(iv) Unisexual flowers possessing only stamens cannot produce fruits.
A
(iii) and (iv)B
(i), (iii) and (iv)C
(i) and (iv)D
(ii), (iii) and (iv)Click an option to check your answer
Q. 59
In Rhizopus, tubular thread like structures bearing
sporangia at their tips are called :
A
RhizoidsB
RootsC
FilamentsD
HyphaeClick an option to check your answer
Q. 60
Asexual reproduction takes place through budding in:
A
LeishmaniaB
YeastC
AmoebaD
PlasmodiumClick an option to check your answer
Q. 61
Reproduction is essential for living organisms to
order to
A
maintain growth.B
continue the species generation after generation.C
fulfill their energy requirement.D
keep the individual organism alive.Click an option to check your answer
Q. 62
The ability to give rise to new individual organisms from their body parts.
A
FissionB
RegenerationC
ReproductionD
FragmentationClick an option to check your answer
Q. 63
Which of the following statement is not true about reproduction?
A
Cell division in unicellular organisms is the method of reproduction.B
Creation of a DNA copy is a basic event in reproduction.C
Organisms create exact copies of themselves.D
Simply breaking up into smaller pieces upon maturation is also a method of reproduction.Click an option to check your answer
Q. 64
Where does fertilization occur in human females?
A
CervixB
VaginaC
UterusD
OviductClick an option to check your answer
Q. 65
The ability of a cell to divide into several cells
during reproduction in Plasmodium is called :
A
BuddingB
Reduction divisionC
Multiple fissionD
Binary fissionClick an option to check your answer
Q. 66
A ___ fuses with a ___ in generative
fertilisation.
A
Secondary nucleus, polar nucleusB
Polar nucleus, female gameteC
Male gamete, female gameteD
All of the aboveClick an option to check your answer
Q. 67
What happens when a Planarian (plural-Planaria)
is cut into many fragments?
A
Nearly half of the fragments regenerate into new organisms.B
Only the head containing fragment regenerates into a new organism.C
All fragments regenerate into new organisms.D
No changes are seen in fragments. Planaria reproduce by budding.Click an option to check your answer
Q. 68
The place where fertilization take place in the human body is-
A
UterusB
OvaryC
vaginaD
OviductClick an option to check your answer
Q. 69
Which of the following layers of uterus breaks off during menstruation?
A
PerimetriumB
EndometriumC
MyometriumD
EpimetriumClick an option to check your answer
Q. 70
Why is reproduction considered a fundamental feature of all life forms?
A
It ensures the growth of existing organismsB
It enables the exchange of genetic material between individualsC
Each individual exists due to this processD
It helps in maintaining body temperatureClick an option to check your answer
Q. 71
Characters transmitted from parents to offspring
are present in:
A
genesB
cytoplasmC
ribosomeD
golgi bodiesClick an option to check your answer
Q. 72
Which of the following accessory glands are associated with human male reproductive system ?
A
Seminal vesicle, prostate glands & cowper’s glandsB
Seminal vesicles & cowper’s glandsC
Seminal vesicles & prostate glandsD
Prostate & cowper’s glandsClick an option to check your answer
Q. 73
The hormone that supports endometrium during pregnancy is
A
Luteinizing hormoneB
NoneC
OestrogenD
ProgesteroneClick an option to check your answer
Q. 74
Which one of the following is not a method of reproduction?
A
BuddingB
Spore formationC
RegenerationD
VegetationClick an option to check your answer
Q. 75
An unisexual flower
A
Has either petal or sepalB
Has either carpel or stamenC
Do not have carpelD
Do not have stamenClick an option to check your answer
Q. 76
Length of pollen tube depends on the distance
between :
A
upper surface of stigma and lower part of style.B
pollen grain and upper surface of stigma.C
pollen grain in anther and upper surface of stigma.D
pollen grain on upper surface of stigma and ovule.Click an option to check your answer
Q. 77
The ability of cell to divide into several cells during reproduction in Plasmodium is called ________ .
A
multiple fissionB
reproductive divisionC
buddingD
binary fissionClick an option to check your answer
Q. 78
Which of the following organisms does not depend on reproduction to exchange genetic material?
A
BacteriumB
CockroachC
PapayaD
LionClick an option to check your answer
Q. 79
Copper T and Loops are
A
Conventional devicesB
Conducive devicesC
Contaminating devicesD
Contraceptive devicesClick an option to check your answer
Q. 80
Vegetative propagation refers to formation of new plants from
A
stem, flowers and fruitsB
stem, roots and flowersC
stem, leaves and flowersD
stem, roots and leavesClick an option to check your answer
Q. 81
What is the significance of reproduction for species?
A
It ensures the survival of the fittestB
It allows for the adaptation to changing environmentsC
It provides a means for species continuationD
It helps in regulating body temperatureClick an option to check your answer
Q. 82
The ovary releases an egg approximately every
A
28 daysB
8 daysC
21 daysD
14 daysClick an option to check your answer
Q. 83
Which of these secretes seminal fluid?
A
Prostate glandB
Neither of theseC
Both of theseD
Seminal vesicleClick an option to check your answer
Q. 84
The fusion of a male and a female gamete results in the formation of
A
zygoteB
sporeC
eggD
spermClick an option to check your answer
Q. 85
Male reproductive organ in flowering plant is-
A
OvaryB
CarpelC
CorollaD
StamenClick an option to check your answer
Q. 86
Organisms in which reproduction is a function of a specific cell type are:
A
bacteriaB
AmoebaC
unicellular organismsD
multicellular organismsClick an option to check your answer
Q. 87
Which of the following is formed during tissue culture?
A
CallusB
CotyledonC
GametesD
EmbryoClick an option to check your answer
Q. 88
In which part of the female human reproductive system is the ovum normally fertilized by a sperm?
A
VaginaB
UterusC
OvaryD
OviductClick an option to check your answer
Q. 89
Which of the following are included in natural methods of birth control ?
A
Vasectomy & tubectomyB
Condoms & diaphragmsC
Abstinence method & rhythm methodD
Oral pills & vaginal pillsClick an option to check your answer
Q. 90
A fertilized ovule develops into a _____ in an angiosperm plant.
A
cotyledonB
seedC
fruitD
flowerClick an option to check your answer
Q. 91
Vegetative propagation can take place by means of
A
stem onlyB
roots onlyC
none of theseD
roots, stem and leavesClick an option to check your answer
Q. 92
Offspring formed as a result of sexual reproduction
exhibit more variations because:
A
genetic material comes from two parents of the same species.B
sexual reproduction is a lengthy process.C
genetic material comes from many parents.D
genetic material comes from two parents of different species.Click an option to check your answer
Q. 93
What is the most common method of reproduction in animals and plants?
A
Asexual reproductionB
Vegetative propagationC
Sexual reproductionD
BuddingClick an option to check your answer
Q. 94
Which of the following statements are true for
flowers?
(i) Flowers are always Exemplar INCERT bisexual .
(ii) They are the sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) After fertilisation they give rise to fruits.
(i) Flowers are always Exemplar INCERT bisexual .
(ii) They are the sexual reproductive organs.
(iii) They are produced in all groups of plants.
(iv) After fertilisation they give rise to fruits.
A
(ii) and (iv)B
(i) and (iii)C
(ii) and (iii)D
(i) and (iv)Click an option to check your answer
Q. 95
IUCD is for
A
avoiding miscarriage.B
vegetative propagationC
contraceptionD
increasing fertilityClick an option to check your answer
Q. 96
Which of the following sexually transmitted
diseases is caused by a virus?
A
CholeraB
ChlamydiaC
Hepatitis BD
SyphilisClick an option to check your answer
Q. 97
External fertilisation takes place in -
A
goat and fish.B
dog and goatC
frog and monkeyD
fish and frogClick an option to check your answer
Q. 98
Name the process shown in the above diagram of
getting back a full organism from its body parts.
A
FissionB
FragmentationC
BuddingD
RegenerationClick an option to check your answer
Q. 99
Budding is a mode of asexual reproduction in:
A
yeastB
PlasmodiumC
AmoebaD
LeishmaniaClick an option to check your answer
Q. 100
An animal which can reproduce by budding is
A
HydraB
BryophyllymC
YeastD
All of the aboveClick an option to check your answer
Q. 101
The correct sequence of reproductive stages seen in flowering plants is-
A
zygote, gametes, embryo, seedlingB
seedling, embryo, zygote, gametesC
gametes, zygote, embryo, seedlingD
gametes, embryo, zygote, seedlingClick an option to check your answer
Q. 102
In the list of organisms given below, those that
reproduce by the asexual method are:
(i) banana
(ii) dog
(iii) yeast
(iv) Amoeba
(i) banana
(ii) dog
(iii) yeast
(iv) Amoeba
A
(i), (iii) and (iv)B
(ii) and (iv)C
(ii), (iii) and (iv)D
(i) and (iv)Click an option to check your answer
Q. 103
Characters transmitted from parents to offspring are present in
A
ribosomeB
genesC
golgi bodiesD
cytoplasmClick an option to check your answer
Q. 104
What is involved in sexual reproduction to form a single cell called a zygote?
A
Fusion of two nucleiB
Fusion of two types of reproductive cells known as gametesC
Division of a single cellD
Formation of sporesClick an option to check your answer
Q. 105
In higher animals, male and female gametes are produced by different individuals. What term is used to describe such individuals?
A
UnisexualB
HermaphroditeC
BisexualD
AsexualClick an option to check your answer
Q. 106
In Rhizopus, tubular thread-like structure bearing sporangia at their tips are called-
A
rhizoidsB
rootsC
hyphaeD
filamentsClick an option to check your answer
Q. 107
In Spirogyra, asexual reproduction takes place by:
A
breaking up of filaments into smaller bits.B
division of a cell into two cells.C
division of a cell into many cells.D
formation of young cells from older cells.Click an option to check your answer
Q. 108
In which of the following aspects does multiple
fission differs from binary fission?
(i) Number of offsprings produced.
(ii) Level of genetic variation in offsprings.
(iii) Number of parents involved.
(iv) Multiple fission happens in Plasmodium whereas binary fission happens in Leishmania.
(i) Number of offsprings produced.
(ii) Level of genetic variation in offsprings.
(iii) Number of parents involved.
(iv) Multiple fission happens in Plasmodium whereas binary fission happens in Leishmania.
A
(ii) is correctB
(iii) is correctC
Only (i) is correctD
Both (i) and (iv) are correctClick an option to check your answer
Q. 109
The Ratio of Number of Chromosomes in a
Human Zygote and a Human Sperm is:
A
1:2B
2:1C
3 : 1D
1:3Click an option to check your answer
Q. 110
What is the principle of natural contraceptive methods?
A
Avoiding sperm and ovum to meetB
Avoiding release of eggC
Avoiding release of spermD
Abortion when pregnantClick an option to check your answer
Q. 111
The number of chromosomes present in parents and offspring of a particular species remains constant due to _______ .
A
doubling of chromosomes during zygote formationB
halving of chromosomes during gamete formationC
doubling of chromosomes after gamete formationD
halving of chromosomes after gamete formationClick an option to check your answer
Q. 112
Where are sperms formed in the human body?
A
OvaryB
Vas deferensC
TestisD
Prostate glandClick an option to check your answer
Q. 113
Which of these is not a sexually transmitted disease?
A
GonorrhoeaB
AIDC
TyphoidD
SyphilisClick an option to check your answer
Q. 114
Which of the following statements about binary
fission is true?
A
Binary fission in Amoeba happens only in the vertical plane.B
Some multicellular organisms also reproduce through binary fission.C
Binary fission in Leishmania can happen in any plane.D
Binary fission produces two new organismsClick an option to check your answer
Q. 115
Characters that are transmitted from parents to
offspring during reproduction show:
A
only similarities with parentsB
only variations with parents.C
both similarities and variations with parents.D
neither similarities nor variations.Click an option to check your answer
Q. 116
What is reproduction?
A
The process of obtaining energy from the environmentB
The process of producing new individual organismsC
The process of breaking down food for cellular energyD
The process of exchanging gases in the respiratory systemClick an option to check your answer
Q. 117
Pre- natal sex determination has been prohibited by law due to-
A
Possible danger of mother’s healthB
Increasing cases of female foeticideC
Increasing cases of male foeticideD
High cost charged by doctorsClick an option to check your answer
Q. 118
The correct sequence of reproductive stages seen
in flowering plants is :
A
zygote, gametes, embryo, seedlingB
gametes, zygote, embryo, seedlingC
gametes, embryo, zygote, seedlingD
seedling, embryo, zygote, gametesClick an option to check your answer
Q. 119
In human females the fertilized egg gets implanted in the
A
ovaryB
ureterC
uterusD
vaginaClick an option to check your answer
Q. 120
Characters that are transmitted from parents to offspring during reproduction show-
A
neither similarities nor variationsB
both similarities and variations with parentsC
only variations with parentsD
only similarities with parentsClick an option to check your answer
Q. 121
Which of the following is not a vegetative propagule?
A
SeedB
StemC
RootD
LeafClick an option to check your answer
Q. 122
The correct sequence of organs in the male
reproductive system for transport of:sperms is
A
testis urethra → ureterB
testis vas deferens → ureterC
testis vas deferens → urethraD
testisureter → urethraClick an option to check your answer
Q. 123
Which of the following is not a part of the female
reproductive system in human beings?
A
Vas deferensB
OvaryC
Fallopian tubeD
UterusClick an option to check your answer
Q. 124
The correct sequence of reproductive stages
occurring in flowering plants is:
A
Gametes, Embryo, Zygote, SeedB
Gametes, Zygote, Embryo, SeedC
Zygote, Gametes, Embryo, SeedD
Seed, Embryo, Zygote, GametesClick an option to check your answer
Q. 125
During adolescence several changes occur in the
human body. Mark one change associated with
sexual maturity in boys.
A
Increase in heightB
Weight gainC
Loss of milk teethD
Cracking of voiceClick an option to check your answer
Q. 126
Which process involves the fusion of two gametes to form a zygote?
A
Asexual reproductionB
BuddingC
RegenerationD
Sexual reproductionClick an option to check your answer
Q. 127
_______ is a common tube for urine and sperm in human male.
A
UreterB
UrethraC
UterusD
None of the aboveClick an option to check your answer
Q. 128
The anther contains :
A
Pollen grainsB
CarpelC
OvulesD
SepalsClick an option to check your answer
Q. 129
Which of the following statements best describes the role of reproduction in the continuity of life?
A
Reproduction is a random process with no significance for species survivalB
Reproduction ensures the transfer of acquired traits to offspringC
Reproduction solely serves to maintain individual organismsD
Reproduction contributes to the perpetuation of genetic diversity within speciesClick an option to check your answer
Q. 130
After fertilization in plants, what does the ovule gradually develop into?
A
FruitB
Bud.C
Plant.D
Seed.Click an option to check your answer
Q. 131
Study the following diagram showing various stages of binary fission in Amoeba: the correct
sequence of these diagrams should be:
A
I, III, IV, II, VB
I, II, IV, III, VC
III, I, IV, II, VD
I, IV, III, II, VClick an option to check your answer
Q. 132
A sexual reproduction takes place through budding in:
A
YeastB
PlasmodiumC
LeishmaniaD
AmoebaClick an option to check your answer
Q. 133
To perform an experiment to identify the different
parts of an embryo of a dicot seed, first of all you
require a dicot seed. Select dicot seeds from the
following group. Wheat, Gram, Maize, Pea, Barley, Ground-nut
A
Gram, Maize and Ground-nutB
Maize, Pea and BarleyC
Gram, Pea and Ground-nutD
Wheat, Gram and PeaClick an option to check your answer
Q. 134
An unisexual flower
A
Has either carpel or stamenB
Has either petal or sepalC
Do not have stamenD
Do not have carpelClick an option to check your answer
Q. 135
Vegetative propagation is a type of:
A
reproductionB
farmingC
cookingD
movement controlClick an option to check your answer
Q. 136
Which among the following is not function of
testes at puberty?
(i) Formation of germ cells
(ii) Secretion of testosterone
(iii) Development of placenta
(iv) Secretion of estrogen
(i) Formation of germ cells
(ii) Secretion of testosterone
(iii) Development of placenta
(iv) Secretion of estrogen
A
(i) and (iv)B
(iii) and (iv)C
(i) and (ii)D
(ii) and (iii)Click an option to check your answer
Q. 137
Vegetative propagation refers to formation of new
plants from:
A
stem, roots and flowersB
stem, leaves and flowersC
stem, roots and leavesD
stem, flowers and fruitsClick an option to check your answer
Q. 138
What happens when male and female gametes fertilize in sexual reproduction?
A
They form a zygote with characteristics only from the female parent.B
They form a zygote with characteristics only from the male parent.C
They form a zygote with characteristics from both parents.D
They form multiple zygotes with various combinations of characteristics.Click an option to check your answer
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