Objective Biology for NEET

Rajiv Vijay

Chapter 1

Reproduction in Organisms - all with Video Answers

Educators

Chapter Questions

Problem 1

Clones are
(a) Morphologically similar
(b) Genetically similar
(c) Both (a) and (b)
(d) None of these

Anas Venkitta

Anas Venkitta

Numerade Educator

Problem 2

The approximate life span of a parrot is
(a) 60 years
(b) $1-2$ weeks
(c) 15 years
(d) 140 years

Anas Venkitta

Numerade Educator

Problem 4

Arrange the following in decreasing order of their life span.
(1) Crocodile
(2) Dog
(3) Crow
(4) Parrot
(a) $1>2>3>4$
(b) $2>3>4>1$
(c) $4>1>2>3$
(d) $4>1>3>2$

Anas Venkitta

Numerade Educator

Problem 5

Life span of a tortoise is approximately
(a) $50-100$ years
(b) $100-150$ years
(c) $150-200$ years
(d) $200-250$ years

Anas Venkitta

Numerade Educator

Problem 6

The given diagram shows:
(a) Budding in bacteria
(b) Binary fission in amoeba
(c) Budding in yeast
(d) Budding in sponge

Anas Venkitta

Numerade Educator

Problem 7

Sexual reproduction is characterized by
(a) Two parent participation
(b) Formation of gametes
(c) Fusion of gametes
(d) All of these

Anas Venkitta

Numerade Educator

Problem 8

Asexual reproduction is common among all except
(a) Unicellular organisms
(b) Plants with simple organization
(c) Animals with simple organization
(d) Animals with complex organization

Anas Venkitta

Numerade Educator

Problem 9

Name an organism where cell division is itself a mode of reproduction?
(a) Amoeba
(b) E. coli
(c) Euglena
(d) All of these

Anas Venkitta

Numerade Educator

Problem 10

The given diagram shows
(a) Budding in bacteria
(b) Binary fission in amoeba
(c) Budding in yeast
(d) Budding in sponge

Anas Venkitta

Numerade Educator

Problem 11

Cell division is synonymous with reproduction in
(a) Plants and fungi
(b) Animal and plant
(c) Protista and monera
(d) Monera and algae

Anas Venkitta

Numerade Educator

Problem 12

Binary fission is seen in
(a) Amoeba
(b) Paramecium
(c) Vorticella
(d) All of these

Anas Venkitta

Numerade Educator

Problem 13

Which of these organisms show budding?
(a) Yeast
(b) Hydra
(c) Sponge
(d) All of these

Anas Venkitta

Numerade Educator

Problem 14

Find the false statement.
(A) In yeast unequal division leads to bud formation.
(B) When offspring is produced by a single parent with or without the involvement of gamete formation, the reproduction is asexual.
(C) Size of crows and parrots are not very different yet their life span shows a wide difference.
(D) In binary fission cell divides in unequal parts.
(a) Only B and D
(b) Only $\mathrm{C}$
(c) Only D
(d) Only A and B

Anitha Mary

Numerade Educator

Problem 15

The approximate life span of the organism shown in the given diagram is
(a) 5 years
(b) 15 years
(c) 25 years
(d) 50 years

Anas Venkitta

Numerade Educator

Problem 16

Match column-I (Organism) with column-II (reproductive structure). \begin{tabular}{ll}
\hline Column-I & Column-II \\
\hline (A) Penicillium & (1) Conidia \\
(B) Hydra & (2) Exogenous bud \\
(C) Sponge & (3) Gemmules (Endogenous buds) \\
(D) Paramecium & (4) Binary fission \\
\hline
\end{tabular}
(a) $\mathrm{A}: 1$ 3, D: 4
(c) $\mathrm{A}: 1, \mathrm{~B}: 3, \mathrm{C}: 4, \mathrm{D}: 2$
(d) A: 2, B : 1, C: 4, D : 3

Anas Venkitta

Numerade Educator

Problem 17

Select the incorrect statement.
(a) Members of the Kingdom fungi and simple plants such as algae reproduce through special asexual reproductive structures.
(b) Zoospores are generally microscopic motile structures.
(c) Zoospores are usually macroscopic motile structures.
(d) Clones are morphologically and genetically similar individuals.

Anitha Mary

Numerade Educator

Problem 18

What are the units of vegetative propagation in plants?
(a) Runners and rhizomes
(b) Suckers and bulbs
(c) Tuber and offset
(d) All of these

Anas Venkitta

Numerade Educator

Problem 19

In plants, the units of vegctative propagation are capable of giving rise to new offspring. These structures are called
(a) Zoospores
(b) Asexual spores
(c) Vegetative propagules
(d) Rhizomes

Anas Venkitta

Numerade Educator

Problem 20

Match Column-I (Structure) with Column-II (Name of structurc and its parent plant).
(a) $\mathrm{A}: 2, \mathrm{~B}: 1, \mathrm{C}: 3$
(b) A:1. B:2, C:3
(c) $\mathrm{A}: 3, \mathrm{~B}: 2, \mathrm{C}: 1$
(d) $\mathrm{A}: 2, \mathrm{~B}: 3, \mathrm{C}: 1$

Anas Venkitta

Numerade Educator

Problem 21

Which is the incorrect statement about water hyacinth?
(a) Introduced in India for their lovely flowers and shape of leaves.
(b) It is world's most problematic terrestrial weed.
(c) It reproduce asexually through offsets
(d) Its botanical name is Eicchornia crassipes.

Anitha Mary

Numerade Educator

Problem 22

Vegetative propagules of Agave is
(a) Tuber
(b) Rhizome
(c) Bulbil
(d) Runner

Anas Venkitta

Numerade Educator

Problem 23

Vegetative propagules of Solanum tuberosum is
(a) Tuber
(b) Rhizome
(c) Bulbil
(d) Offset

Anas Venkitta

Numerade Educator

Problem 24

Select the odd one out.
(a) Tuber
(b) Rhizome
(c) Bulbil
(d) Zoospores

Anas Venkitta

Numerade Educator

Problem 25

Rhizomes are vegetative propagules of
(a) Apple
(b) Banana
(c) Mango
(d) Grapes

Anas Venkitta

Numerade Educator

Problem 26

Which of these points is false about the diagram?
(a) Belongs to class mammalia
(b) Life span is approximately 40 years
(c) Belongs to genus Elephas
(d) Crepuscular animal

Anas Venkitta

Numerade Educator

Problem 27

Choose the correct statement.
(A) Asexual reproduction method is the common method of reproduction in organisms with relatively simple organization like algae and fungi.
(B) Organism with relatively simple organization like algae and fungi shifted to sexual mode of reproduction just before the onset of adverse conditions.
(C) Vegetative as well as sexual mode of reproduction is exhibited by the higher plants
(D) Only sexual mode of reproduction is present in most of the animals.
(a) $\mathrm{A}$ and $\mathrm{B}$ only
(b) $\mathrm{B}$ and $\mathrm{C}$ only
(c) $\mathrm{C}$ and $\mathrm{D}$ only
(d) All A, B, C and D

Anitha Mary

Numerade Educator

Problem 28

Sexual reproduction when compared to asexual reproduction is a
(A) Slow process
(B) Fast process
(C) Simple process
(D) Complex process
(a) A and D only
(b) A and C only
(c) $\mathrm{B}$ and $\mathrm{D}$ only
(d) $\mathrm{B}$ and $\mathrm{C}$ only

Anas Venkitta

Numerade Educator

Problem 29

Plants, animals or fungi differ in all of these aspects except
(a) External morphology
(b) Internal structure
(c) Physiology
(d) Pattern of sexual mode of reproduction

Anas Venkitta

Numerade Educator

Problem 30

Which of these plants do not show clear cut vegetative, reproductive and senescent phase?
(a) Annual plant
(b) Biennial plant
(c) Perennial plant
(d) All of these

Anas Venkitta

Numerade Educator

Problem 31

Which information is false about the organism shown in the diagram?
(a) Reproduce by basidiospores
(b) It is a multicellular fungus
(c) It is the conidia of penicillium
(d) Belongs to ascomycetes

Anas Venkitta

Numerade Educator

Problem 32

Which of the following flowers only once in their lifetime?
(a) Mango
(b) Neem
(c) Bamboo
(d) All of these

Anas Venkitta

Numerade Educator

Problem 33

Which of the following plant flowers once in 12 years?
(a) Mangifera indica
(b) Strobilanthus kunthiana (Neclakuranji)
(c) Helianthus annus
(d) Papver somniferum

Anas Venkitta

Numerade Educator

Problem 34

Which of these statement is true about Strobilanthus kunthiana?
(a) This plant flowers during September to October $2006 .$
(b) Its mass flowering transformed large tracks of hilly areas in Kerala, Karnataka and Tamil Nadu into blue stretches.
(c) It flowers once in 12 years.
(d) All the above

Anas Venkitta

Numerade Educator

Problem 35

In animals, the juvenile phase is followed by what changes prior to active reproductive behaviour?
(a) Morphological changes
(b) Physiological changes
(c) Genetical changes
(d) Both (a) and (b)

Anas Venkitta

Numerade Educator

Problem 36

Which of the following mammals show menstrual cycle?
(a) Monkeys
(b) Apes
(c) Humans
(d) All of these

Anas Venkitta

Numerade Educator

Problem 37

The diagram shows:
(a) Zoospores of hydra
(b) Conidia of Penicillium
(c) Gemmules in sponge
(d) Zoospores of chlamydomonas

Anas Venkitta

Numerade Educator

Problem 38

Oestrous cycle occurs in
(a) Cows
(b) Rats
(c) Deer
(d) All of these

Anas Venkitta

Numerade Educator

Problem 39

Find the correct statement.
(a) 'Reproductive phase' is of same duration in all organisms.
(b) Birds in captivity can be made to lay eggs throughout the year.
(c) Female of non-primates shows cyclical changes during reproductive phase which is known as menstrual cycle.
(d) Perennial plants show clear cut vegetative, reproductive and senescent phase.

Anitha Mary

Numerade Educator

Problem 40

Most wild mammals are
(a) Continuous breeder
(b) Seasonal breeder
(c) Continuous for half year, seasonal for next half year
(d) None of these

Anas Venkitta

Numerade Educator

Problem 41

Which of these statements is false about the diagram?
(a) It represents the asexual reproductive structure of hydra.
(b) It contains archaeocyte cells.
(c) It represents asexual reproductive structure of sponges.
(d) It shows gemmules in sponges.

Rehana Riaz

Numerade Educator

Problem 42

'Humans' are
(a) Seasonal breeder
(b) Continuous breeder
(c) Both (a) and (b)
(d) None of these

Anas Venkitta

Numerade Educator

Problem 43

Which of the following can be considered as one of the parameter of senescence or old age?
(a) End of juvenile or vegetative phase
(b) End of reproductive phase
(c) Hormonal imbalance
(d) Slowing of metabolism due to disease

Anitha Mary

Numerade Educator

Problem 44

Pre-fertilization events among these are
(a) Syngamy
(b) Gametogenesis and gamete transfer
(c) Formation of zygote
(d) Embryogenesis

Anas Venkitta

Numerade Educator

Problem 45

Gametes are generally
(a) Haploid
(b) Triploid
(c) Diploid
(d) Hexaploid

Anas Venkitta

Numerade Educator

Problem 46

The diagram shows
(a) Homogametes of cladophora
(b) Heterogametes of fucus
(c) Hetrogametes of cladophora
(d) Heterogametes of fungus

Anas Venkitta

Numerade Educator

Problem 47

Which of the following is/are male gametes?
(a) Egg
(b) Ovum
(c) Antherozoids
(d) Zygote

Anas Venkitta

Numerade Educator

Problem 48

Count the total number of organisms which are monoecious. Cucurbits, Coconut, Papaya, Date palm, Chara, Marchantia
(a) 1
(b) 2
(c) 3
(d) 4

Anitha Mary

Numerade Educator

Problem 49

Archegoniophore is present in
(a) Chara
(b) Papaya
(c) Marchantia
(d) Fucus

Anas Venkitta

Numerade Educator

Problem 50

Select the incorrect statement.
(a) Unisexual male flower is staminate.
(b) Unisexual female flower is pistillate.
(c) Heterothallic and dioecious are terms used to describe unisexual condition.
(d) Cockroach is a hermaphrodite.

Anitha Mary

Numerade Educator

Problem 51

Select the example/s of hermaphrodite organism/s among these.
(a) Earthworm
(b) Tapeworm
(c) Leech
(d) All of these

Anas Venkitta

Numerade Educator

Problem 52

Identify $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ in the diagram.
(a) A: Nodes, B: Buds, C: Adventitious root
(b) A: Buds, B: Nodes, C: Tap root
(c) A: Adventitious root, B: Nodes, C: Buds
(d) A: Tap root, B: Nodes, C: Buds

Anas Venkitta

Numerade Educator

Problem 53

Monoecious plants means
(A) Only male flowers are present in the plant.
(B) Only female flowers are present in the plant.
(C) Bisexual flowers are present in the plants.
(D) Separate male and female flowers are present in the same plant.
(a) Only $\mathrm{A}$
(b) Only D
(c) Only $\bar{C}$
(d) $\mathrm{C}$ and $\mathrm{D}$ both

Anas Venkitta

Numerade Educator

Problem 54

Which of these organisms has/have haploid parental body?
(a) Monera and fungi
(b) Algae
(c) Bryophytes
(d) All of these

Anas Venkitta

Numerade Educator

Problem 55

Which of these organisms has/have diploid parental body?
(a) Pteridophyte and gymnosperm
(b) Angiosperm
(c) Most of the animals
(d) All of these

Anas Venkitta

Numerade Educator

Problem 56

Antheridiophore is present in
(a) Chara
(b) Fucus
(c) Marchantia
(d) Sweet potato

Anas Venkitta

Numerade Educator

Problem 57

The diagram shows
(a) Homogametes of cladophora
(b) Homogametes of fucus
(c) Hetrogametes of cladophora
(d) Heterogametes of fungus

Anas Venkitta

Numerade Educator

Problem 58

Find out the total number of organism whose gametes contain odd number of chromosomes. Rat, Housefly, Dog, Cat, Apple, Rice, Maize, Potato, Onion
(a) 3
(b) 4
(c) 5
(d) 6

Anitha Mary

Numerade Educator

Problem 59

Meiocyte of which organism contains maximum number of chromosomes?
(a) Fruit fly
(b) Butterfly
(c) Ophioglossum (a fern)
(d) Human

Anas Venkitta

Numerade Educator

Problem 60

Meiocyte of cat contains how many chromosomes?
(a) 8
(b) 12
(c) 42
(d) 38

Anas Venkitta

Numerade Educator

Problem 61

Identify the plant part given in the below diagram it belongs to which plant given in the options.

Sirisa Reddy

Numerade Educator

Problem 62

Water is a medium for gamete transfer in
(a) Bryophytes
(b) Pteridophyte
(c) Algae
(d) All of these

Anas Venkitta

Numerade Educator

Problem 63

Which of these are carriers of male gamete in seed plants?
(a) Microspore mother cell
(b) Megaspore mother cell
(c) Anther
(d) Pollen grains

Anas Venkitta

Numerade Educator

Problem 64

Transfer of pollen grains from anther to stigma is known as
(a) Emasculation
(b) Pollination
(c) Bagging
(d) Fertilization

Anas Venkitta

Numerade Educator

Problem 65

The most critical event in sexual reproduction is
(a) Gametogenesis
(b) Gamete transfer
(c) Fertilization (Syngamy)
(d) Embryogenesis

Anas Venkitta

Numerade Educator

Problem 66

Match column-I (Organism) with column-II (Chromosome number in meiocyte). \begin{tabular}{ll}
\hline Column-I & Column-II \\
\hline (A) Housefly & (1) 12 \\
(B) Apple & (2) 34 \\
(C) Rice & (3) 24 \\
(D) Rat & (4) 42 \\
(E) Onion & (5) 32 \\
\hline
\end{tabular}
(a)
(b) $\mathrm{A}: 2, \mathrm{~B}: 3, \mathrm{C}: 1, \mathrm{D}: 4, \mathrm{E}: 5$
$\mathrm{A}: 1, \mathrm{~B}: 2, \mathrm{C}: 3, \mathrm{D}: 4, \mathrm{E}: 5$
$\mathrm{~A}: 5, \mathrm{~B}: 4, \mathrm{C}: 3, \mathrm{D}: 2, \mathrm{E}: 1$
(d) $\mathrm{A}: 3, \mathrm{~B}: 2, \mathrm{C}: 1, \mathrm{D}: 4, \mathrm{E}: 5$
(c)

Anas Venkitta

Numerade Educator

Problem 67

Select the incorrect statement from the following.
(a) Few fungi and algae have motile male and motile female gametes.
(b) Most vital cvent of sexual reproduction is the fusion of gametes.
(c) Pea is a bisexual self-fertilizing plant.
(d) In majority of organisms male gamete is non-motile and female gamete is motile.

Anitha Mary

Numerade Educator

Problem 68

Parthenogenesis is shown by
(a) Rotifers
(b) Honey bees
(c) Some lizards and birds (turkey)
(d) All of these

Anas Venkitta

Numerade Educator

Problem 69

Which of these statements is false about the diagram?
(a) It belongs to the family solanaceae.
(b) It is a modified root meant for storage.
(c) It is a modified stem meant for reproduction.
(d) Eyes of the above structure are axillary buds.

Hast Aggarwal

Numerade Educator

Problem 70

External fertilization is seen in all of these except
(a) Algae
(b) Amphibians
(c) Fishes
(d) Mammals

Anas Venkitta

Numerade Educator

Problem 71

Find the incorrect statement.
(a) Large number of gametes are released in surrounding water in external fertilization.
(b) Offspring produced by external fertilization are extremely vulnerable to predators.
(c) External fertilization is shown by bony fishes and frogs.
(d) In seed plant, the motile male gametes are carried to female gamete by pollen tubes.

Anitha Mary

Numerade Educator

Problem 72

Internal fertilization is seen in
(a) Reptiles
(b) Birds
(c) Mammals
(d) All of these

Anas Venkitta

Numerade Educator

Problem 73

Internal fertilization is seen in
(a) Bryophytes
(b) Pteridophytes
(c) Gymnosperm and angiosperm
(d) All of these

Anas Venkitta

Numerade Educator

Problem 74

Which of these characteristics belong to organisms showing internal fertilization?
(a) Eggs are formed inside the female body where they fuse with male gamete.
(b) Male gametes are motile.
(c) Number of eggs produced is less in number
(d) All of the above

Anas Venkitta

Numerade Educator

Problem 75

Development of embryo from zygote is
(a) Parthenogenesis
(b) Embryogenesis
(c) Blastulation
(d) Gastrulation

Anas Venkitta

Numerade Educator

Problem 76

Life in all organism starts from
(a) Single cell zygote
(b) Two celled zygote
(c) Single cell embryo
(d) Multicellular embryo

Anas Venkitta

Numerade Educator

Problem 77

Select the total number of true statements.
(A) In organisms belonging to fungi and algae, the zygote develops a thick wall that is resistant to dessication and damage.
(B) Formation of diploid zygote is universal in all sexually reproducing organisms.
(C) Syngamy occurs inside the body of the organism in internal fertilization.
(D) In organism with haplontic life cycle, the zygote divides by meiosis to form haploid spores that grow into haploid individuals.
(a) 1
(b) 2
(c) 2
(d) 4

Anitha Mary

Numerade Educator

Problem 78

The following are oviparous except
(a) Crocodile
(b) Crow
(c) Parrot
(d) Horse

Anas Venkitta

Numerade Educator

Problem 79

In oviparous animals like birds and reptiles the fertilized egg is covered by shell made up of
(a) $\mathrm{SiO}_{2}$
(b) $\mathrm{Na}_{2} \mathrm{CO}_{3}$
(c) $\mathrm{CaCO}_{3}$
(d) $\mathrm{MgCO}_{3}$

Anas Venkitta

Numerade Educator

Problem 80

The chances of survival of the young one is greater in
(a) Internal fertilization
(b) External fertilization
(c) Oviparous animals
(d) Viviparous animals

Anas Venkitta

Numerade Educator

Problem 81

After fertilization which part of flower generally withers and falls off?
(a) Sepals
(b) Petals
(c) Stamens
(d) All of these

Anas Venkitta

Numerade Educator

Problem 82

Select the false statement.
(a) Ovule develops into seed
(b) Ovary develops into fruit
(c) Zygote develops into embryo
(d) Placenta develops into pericarp

Anitha Mary

Numerade Educator

Problem 83

$\mathrm{A}, \mathrm{B}, \mathrm{C}$ and $\mathrm{D}$ shows which type of placentation respectively?
(B)
(D)
(a) A: Marginal, B: Free central, C: Perietal, D: Axile
(b) A: Perietal, B: Marginal, C: Axile, D: Free central
(c) A: Axile, B: Free central, C: Marginal, D: Perictal
(d) A: Axile, B: Perictal, C: Frec central, D: Marginal

Hast Aggarwal

Numerade Educator

Problem 84

Gametes in haploid organisms are produced by
(a) Amitosis
(b) Mitosis
(c) Meiosis
(d) Cleavage

Anas Venkitta

Numerade Educator

Problem 85

Embryonal protection and care are better in
(a) Oviparity
(b) Parthenogenesis
(c) Viviparity
(d) Polyembryony

Anas Venkitta

Numerade Educator

Problem 86

After fertilization in angiosperms, ovules develop into
(a) Pericarp
(b) Fruit
(c) Seed
(d) Embryo

Anas Venkitta

Numerade Educator

Problem 87

'A' in the diagram shows:
(a) Testis of a male cockroach
(b) Ovary of a female cockroach
(c) Testis of an earthworm
(d) Ovary of an earthworm

Anas Venkitta

Numerade Educator

Problem 88

The progenitor of the next generation inside the mature seed is known as
(a) Micropyle
(b) Pericarp
(c) Embryo
(d) Zygote

Anas Venkitta

Numerade Educator

Problem 89

Identify the ploidy of the following parts of flowering plants. Ovary, Anther, Egg, Pollen, Male gamete and Zygote
(a) $2 \mathrm{n}, 2 \mathrm{n}, \mathrm{n}, \mathrm{n}, \mathrm{n}, 2 \mathrm{n}$
(b) $2 \mathrm{n}, 3 \mathrm{n}, \mathrm{n}, \mathrm{n}, 2 \mathrm{n}, 2 \mathrm{n}$
(c) $2 \mathrm{n}, \mathrm{n}, \mathrm{n}, \mathrm{n}, \mathrm{n}, 2 \mathrm{n}$
(d) $2 \mathrm{n}, 2 \mathrm{n}, \mathrm{n}, 2 \mathrm{n}, \mathrm{n}, 2 \mathrm{n}$

Anitha Mary

Numerade Educator

Problem 90

Select the correct statement from the following.
(A) In flowering plants, the zygote is formed inside the ovule.
(B) In reptiles and birds, the fertilized eggs covered by hard calcareous shell (Cleidoic) are laid in a safe place in environment.
(C) In organisms belonging to fungi and algae, the zygote develops a thick wall that is vulnerable to dessication and damage.
(D) During embryogenesis, zygote undergoes cell division and cell differentiation.
(a) A and C only
(b) $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ only
(c) $\mathrm{C}$ and $\mathrm{D}$ only
(d) A, B and D only

Anitha Mary

Numerade Educator

Problem 91

Which of these statements is truc about Chara?
(a) Oogonium and antheridium are present on different plants.
(b) Oogonium is placed in the upper part and antheridium in the lower part.
(c) Oogonium is placed in the lower part and antheridium in the upper part.
(d) Chara belongs to angiosperm.

Anitha Mary

Numerade Educator

Problem 92

Identify A and B in this diagram.
(a) A: Anther, B: Sepals
(b) A: Petals, B: Anther
(c) A: Stamen, B: Carpel
(d) A: Pistil, B: Stamen

Anas Venkitta

Numerade Educator

Problem 93

Find the chromosome numbers in gamete (n) of the following organisms respectively. Human, Housefly, Rat, Dog, Cat, Fruitfly, Apple, Rice, Maize, Potato, Butterfly, Onion
(a) $23,12,12,39,19,6,17,12,10,24,190,16$
(b) $23,12,21,39,19,6,17,12,2024,190,16$
(c) $23,6,21,39,19,4,17,12,10,24,190,16$
(d) $23,6,12,39,19,4,17,21,10,24,190,16$

Anitha Mary

Numerade Educator

Problem 94

Identify $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ in the diagram.
(A)
(B)
(a) A: Heterogametes of chlamydomonas
B: Homogametes of fucus
C: Hetrogametes of homo sapiens
(b) A: Homogametes of chara
B: Heterogametes of fucus
C: Heterogamete of homo sapiens
(c) A: Homogamete of cladophora (a bryophyte)
B: Heterogamete of fucus (an alga)
C: Heterogamete of homo sapiens
(d) A: Isogametes of cladophora (an alga)
B: Hcterogamctes of fucus (an alga) C:Heterogametes of homo sapiens

Anas Venkitta

Numerade Educator

Problem 95

Adventitious buds arise from the notches present at margins of leaves in
(a) Potato
(b) Offset
(c) Bryophyllum
(d) Turmeric

Anas Venkitta

Numerade Educator

Problem 96

Most common type of reproduction in animals?
(a) Asexual
(b) Vegetative
(c) Sexual
(d) Gemmules formation

Anas Venkitta

Numerade Educator

Problem 97

What is the number of non-primate mammals in this series? Cow, Sheep, Rat, Deer, Dog, Tiger; Monkey, Human and Ape
(a) 3
(b) 4
(c) 6
(d) 7

Anitha Mary

Numerade Educator

Problem 98

Rhizomes are present in
(a) Banana
(b) Ginger
(c) Potato
(d) Both (a) and (b)

Anas Venkitta

Numerade Educator

Problem 99

Identify $\mathrm{A}, \mathrm{B}$ and $\mathrm{C}$ in the figure.
(a) A: Zoospores of chlamydomonas, B: Conidia of penicillium, C: Buds in hydra
(b) A: Zoospores of chlamydomonas, B: Conidia of yeast, C: Buds in hydra
(c) A: Conidia of penicillium, B: Zoospores of chlamydomonas, C: Buds in hydra
(d) A: Zoospores of chlamydomonas, B: Ascospores of penicillium, C: Buds in hydra

Anas Venkitta

Numerade Educator

Problem 100

Bulbils are vegetative propagules in
(a) Water hyacinth
(b) Agave
(c) Potato
(d) Tomato

Anas Venkitta

Numerade Educator

Problem 101

Assertion: Ascxual as well as sexual modes of reproduction are exhibited by the higher plants. Reason: Only sexual mode of reproduction is present in most of the animals.

Anitha Mary

Numerade Educator

Problem 102

Assertion: In sexual reproduction the offsprings are not identical to parents or amongst themselves. Reason: Sexual reproduction involves fusion of male and female gametes.

Anas Venkitta

Numerade Educator

Problem 103

Assertion: Humans are called continuous breeders. Reason: Humans are reproductively active throughout.

Anas Venkitta

Numerade Educator

Problem 104

Assertion: Zygote is the vital link that ensures continuity of species between organisms. Reason: Most vital events of sexual reproduction is the fusion of gametes.

Anitha Mary

Numerade Educator

Problem 105

Assertion: In flowering plant after fertilization, ovary develops into seeds. Reason: Ovules mature into fruits.

Anitha Mary

Numerade Educator

Problem 106

Assertion: In angiosperms the ovule develops into a seed after fertilization. Reason: Fertilization is not essential for the formation of fruit.

Anitha Mary

Numerade Educator

Problem 107

Assertion: Sexual reproduction is a simple and fast process. Reason: Asexual reproduction is a complex and slow process

Anitha Mary

Numerade Educator

Problem 108

Assertion: Organisms exhibiting external fertilization releases large number of gametes in to the surrounding medium. Reason: It will enhance the chance of syngamy.

Anitha Mary

Numerade Educator

Problem 109

Assertion: The chance of survival of young ones is greater in viviparous organism. Reason: Proper embryonic care and protection is available inside the body of female organism.

Anitha Mary

Numerade Educator

Problem 110

Assertion: All members of bee are diploid except the queen. Reason: Queen is produced parthenogenetically.

Anitha Mary

Numerade Educator

Problem 111

Assertion: Over growth of water hyacinth leads to death of fishes in aquatic body. Reason: Water hyacinth drains oxygen from water.

Anitha Mary

Numerade Educator

Problem 112

Assertion: Birds in captivity can be made to lay eggs through the year (poultry farm) Reason: Birds lay eggs seasonally.

Anitha Mary

Numerade Educator

Problem 113

Assertion: Period of growth before attaining sexual maturity is called Juvenile phase equal. Reason: Duration of juvenile phase in all organisms is same.

Anitha Mary

Numerade Educator

Problem 114

Assertion: Vegetative propagation is asexual process. Reason: Vegetative propagation doesn't involve two parents.

Anitha Mary

Numerade Educator

Problem 115

Assertion: Bamboo plant shows gregarious flowering. Reason: Bamboo plant flower once in their life time.

Anitha Mary

Numerade Educator

Problem 116

Assertion: In seed plants the fertilization is external. Reason: In seed plant male gamete is motile.

Anitha Mary

Numerade Educator

Problem 117

Assertion: Budding and gamete formation are the common asexual methods seen in animals. Reason: Asexual method does not involve the formation and fusion of gametes.

Anitha Mary

Numerade Educator

Problem 118

Assertion: Animals are always viviparous. Reason: Plants are always oviparous.

Anitha Mary

Numerade Educator

Problem 119

Assertion: Plants are defined as monoecious and dioecious Reason: Flowers may be bisexual and unisexual.

Anitha Mary

Numerade Educator