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Reproduction in lower and higher Animals 12 biology

 

Reproduction in lower and higher Animals

Multiple Choice Question (MCQ)


Maharashtra State Board class 12th Biology MCQ Chapter 2

Reproduction in lower and higher Animals MCQ



1

In a flower, if the megaspore mother cell forms megaspore undergoing meiosis and if one of the megaspores develops into embargo sac, its nuclei be  

A

Haploid

B

Diploid

C

A few haploid and a few diploid

D

With varying ploidy

Ans:

Diploid

 

2

Function of germ pore is

A

Emergence of radicle

B

Absorption

C

Growth of pollen tube

D

Relies of mate gamete

Ans:

Growth of pollen tube

 

3

In an embryo sac, the cells that degenerate after fertilization are

A

Synergids and primary endosperm cell

b

Synergids and antipodals

C

Antipodals and primary endosperm cell

D

Egg and antipodals

Ans:

Synergids and antipodals

 

4

Transfer of pollen grains form the anther to the stigma of another flower od same plant is called

A

Geitonogamy

B

Autogamy

C

Xenogamy

D

Cross pollination

Ans:

Geitonogamy

 

5

Dioecy states

A

unisexuality of a flower

B

Bisexuality of a flower

C

Bisexuality of a plant

D

Unisexuality of a plant

Ans:

Unisexuality of a plant

 

6

Unisexuality of flowers prevent

A

geitonogamy

B

Autogamy

C

Xenogamy

D

Both geitonogamy and xenogamy

Ans:

Autogamy

 

7

Filiform apparatus per forms the function of

A

Opening the pollen tube

B

Guiding the pollen tube to egg

C

Entry of the pollen tube into synergids

D

Prevents growth of more than one pollen tube

Ans:

Guiding the pollen tube to egg

 

8

In angiosperms, male gametes are formed by the division of

A

Microspore mother cell

B

Microspore

C

Generative cell

D

Vegetative cell

Ans:

Microspore mother cell

 

9

During microsporogenesis meiosis occurs in

A

Endothecium

B

Microspore mother cells

C

Microspore tetrads

D

Pollen grains

Ans:

Microspore mother cells

 

10

In a cereal grain the single cotyledon of embryo is represented by

A

Coleoptile

B

Scutellum

C

Hypocotyl

D

coleorhiza

Ans:

Scutellum

  

11

Which of the following structures are haploid in nature?

A

Nucellus and antipodals

B

Microspore and antipodals

C

egg and antipodals

D

Egg and central cell

Ans:

Egg and antipodals 

 

12

The total number of nuclei involved in double fertilization in angiosperms are

A

Two

B

Three

C

Four

D

Five

Ans:

Five

 

13

Fusion of one of the male gametes with egg nucleus is referred to as

A

Generative fertilization

B

Syngamy

C

vegetative fertilization

D

Both (A) and (b)

Ans:

Both (a) and (b)

  

14

Growth of pollen tube towards embryo sac is

A

Chemotropic

B

Thigmotaxis

C

Geotropic

D

None of these

Ans:

Chemotropic

 

15

During the process of fertilization, the pollen tube of the pollen grain usually enters the embryo sac through

A

Integument

B

Nucellus

C

Chalaza

D

Micropyle

Ans:

Micropyle

  

16

The part of gynoecium that determines that determines the compatible nature of pollen is 

A

Stigma

B

Style

C

Ovary

D

Synergids

Ans:

Stigma

 

17

Part of the gynoecium which receives the pollen called

A

Style

B

Stigma

C

Ovule

D

Ovary

Ans:

Stigma

 

18

Which of these is a condition that makes flowers invariably autogenous?

A

Dioecy

B

Self-incompatibility

C

Calistoga

D

Xenogamy

Ans:

Calistoga

 

19

Heterostyly as a contrivance for cross pollination is found in

A

Pennisetum

B

Impatiens

C

Primula vulgaris

D

Oenothera

Ans:

Primula vulgaris

 

20

Fragrant flowers with well-developed notaries are an adaption for

A

Hydrophily

B

Anemophily

C

Entomophily

D

None of these

Ans:

Entomophily

  

21

Pollen kit is generally found in

A

Anemophilous flowers

B

Entomophilous flowers

C

Ornithophiles flowers

D

Malacophilous flowers 

Ans:

Ornithophiles flowers

 

22

Mature ovules are classified on the basis of funiculus. If micropyle comes to lie close to the funiculus the ovule is terms as

A

Orthotropies

B

Anatropous

C

hemitrope

D

Copiotrophs

Ans:

Anatropous

  

23

When micropyle, chalaza and hilum lie in a straight line, the ovule is said to be

A

Anatropous

B

Orthotropies

C

Amphitropic

D

Campylotoropous

Ans:

Orthotropies

 

24

Megasporangium along with its protective in teguments is called

A

Ovary

B

Ovule

C

Funicle

D

Chalaza

Ans:

Ovule

 

25

What is the function of germ pore?

A

Emergence of radicle

B

Absorption of water for seed germination

C

Initiation of pollen tube

D

All of these

Ans:

Initiation of pollen tube

  

26

 Mature dulse is classified on the basis of funiculus. If micropyle come to lie close to the funiculus the ovule is termed as

A

Orthotropies

B

Anatropous

C

Homotropies

D

Campylotropous

Ans:

Anatropous

 

27

When micropyle, chalaza and hilum lie in a straight line the ovule is said to be

A

Anatropous

B

Orthotropies

C

Amphidromous

D

Campylotropous

Ans:

Orthotropies

 

28

Megasporangium along with its protective in teguments is called

A

Ovary

B

Ovule

C

Fundi

D

Chalaza

Ans:

Ovule

 

29

What is the function of ger pore?

A

Emergence of radicle

B

Absorption of water for seed germination

C

Initiation of pollen tube

D

All of these

Ans:

Initiation of pollen tube

 

30

............ of the pollen grain divides to form two male gametes.

A

Vegetative cell

B

Generative cell

C

Microspore mother cell

D

None of these

Ans:

Generative cell

  

31

How many meiotic divisions are required for the formation of 100 pollen grains?

A

100

B

50

C

25

D

26

Ans:

25

 

32

One of the resistant biologic material presents in the exine of a pollen is

A

Petco cellulose

B

Sporopollenin

C

Suberin

D

Cellulose

Ans:

Sporopollenin

 

33

Pollen grain is a

A

Megaspore

B

Microspore

C

Microspore

D

Microsporangium

Ans:

Microspore

  

34

How many pollen mother cells should undergo meiotic division to producer pollen grains?

A

64

B

32

C

16

D

8

Ans:

16

 

35

The female gametophyte of a typical dicot at the time of fertilization is

A

8-nucleate,7-celled

B

8-nucleate,8-celled

C

7-nucleate,7-celled

D

4-nucleate,3celled

Ans:

8-nucleate,7-celled

  

36

Both chasmogamous and cleistogamous flowers are present in

A

Helianthus

B

Comme line

C

Rosa

D

Gossypium

Ans:

Comme line

 

37

Even in absence of pollinating agents seed siting is assured in

A

Comme line 

B

Zostera

C

Salvia

D

Fig

Ans:

Comme line

 

38

Male and female flowers are present on different plants ensure xenogamy in

A

Papaya

B

Bottle gourd

C

Mazie

D

All of these

Ans:

Papaya

 

39

Feathery stigma occurs in

A

Pea

B

Wheat

C

Datura

D

Caesalpinia

Ans:

Wheat

 

40

Plants with ovaries having only or a few ovules are generally pollinated by

A

Bees

B

Butterflies

C

Birds

D

Wind

Ans:

Wind

  

41

Which of the following id not a water pollinated plant?

A

Zostera

B

Vallisneria

C

Hydrilla

D

Cannabis

Ans:

Cannabis

 

42

Spiny or sticky pollen grains and large, attractively colored flowers are associated with

A

Hydrophily

B

Entomophily

C

Ornithophily

D

Anemophily

Ans:

Entomophily

 

43

Endospermic seed are found in

A

Castor

B

Barley

C

Coconut

D

All of these

Ans:

All of these

 

44

In albuminous seeds, food is stored in …………..and in non-albuminous seeds, it is stored in ________

A

Endosperm, cotyledons

B

Cotyledons, endosperm

C

Nucellus, cotyledons

D

Endosperm, radicle

Ans:

Endosperm, cotyledons

 

45

Persistent nucellus is called as……………and is found in _________

A

Perisperm, black pepper

B

Perisperm, groundnut

C

Endosperm, black pepper

D

Endosperm, groundnut

Ans:

Endosperm, black pepper

 

46

Polyembryony commonly occurs in

A

Banana

B

Tomato

C

Potato

D

Citrus

Ans:

Citrus

  

47

An embryo may sometimes develop from any cell of embryo sac other than egg. It is termed as

A

Apospory

B

Apogamy

C

Parthenogenesis

D

Parthenocarpy

Ans:

Apogamy

 

48

Embryo sac is to ovule as ________________ is to an anther.

A

Stamen

B

Filament

C

Pollen grain

D

Androecium

Ans:

Pollen grain

  

49

During micros progenesis, meiosis occurs in

A

Endothecium

B

Microspore mother cells

C

Microspore tetrads

D

Pollen grains

Ans:

Microspore mother cells

 

50

Science of cultivation, breeding marketing and arrangement of flower is called

A

Arboriculture

B

Floriculture

C

Horticulture

D

Anthology

Ans:

Floriculture

  

51

Nonessential floral organs in a flower are

A

Sepals and petals

B

Anther and ovary

C

Stigma and filament

D

Petals only

Ans:

Sepals and petals

 

52

The stamens represent

A

Microsporangia

B

Male gametophyte

C

Male gametes

D

Microsporophyll’s

Ans:

Microsporophyll’s

 

53

Another is generally

A

Meiosporangia

B

Bisporangiate

C

Letrasporangiate

D

Trisporangiate

Ans:

Letrasporangiate

 

54

Calls enzyme which dissolves callose of pollen tetrads to separate four pollens is provided by

A

Pollens

B

Tapetum

C

Middle layers

D

Endothecium

Ans:

tapetum

 

55

Study of pollen grains is called

A

Micrology

B

Anthology

C

Palynology

D

Pomology

Ans:

Palynology

 

56

Several of pollen grains forma unit designated as pollinium in family

A

Asteraceae

B

Asclepiadaceae

C

Cucurbitaceae

D

Brassicaceae

Ans:

Asclepiadaceae

 

57

Triple fusion in Casella pastoris is fusion of male gamete with

A

Egg

B

Synergid

C

Secondary nucleus

D

Antipodal

Ans:

Secondary nucleus

 

58

Double fertilization was first discovered in 1898 by……. in fritillaria and lilium

A

Nawas chin

B

Strasburger

C

Amici

D

Fowke

Ans:

Nawas chin

 

59

If an endosperm cell of an angiosperm contains 24 chromosomes the number of chromosomes in each cell of the root will be

A

8

B

4

C

16

D

24

Ans:

16

 

60

The cells of endosperm have 24 chromosomes what will be the number of chromosomes in the gametes?

A

8

B

16

C

23

D

32

Ans:

8

   

61

Father of Indian embryology is

A

p. Maheshwari

B

Swaminathan

C

R. Misran

D

Butler

Ans:

p. Maheshwari

 

62

The portion of embryonal axis between plumule and cotyledons is called

A

Hypocotyl

B

Epicotyl

C

Coleorhiza

D

Coleoptile

Ans:

Epicotyl

  

63

Pollination in lotus is

A

By water

B

By wind

C

By insect

D

All of these

Ans:

By water

 

64

Haploid plants develop by pollen are called ______________

A

Emasculation

B

Parthenocarpy

C

Androgenesis

D

Somatic hybridization

Ans:

Somatic hybridization

 

65

Closed flower

A

Decline

B

Celiotomy

C

Dichogamy

D

None of these

Ans:

celiotomy

  

66

Demerit of self-pollination is

A

Unisexual  

B

Dichogamy

C

Heterostyled

D

None of these

Ans:

Dichogamy

 

67

Normal embryo sac of angiosperm is

A

Unicellular

B

Bi called

C

Penta called

D

Seven called

Ans:

Unicellular

 

68

Which structure is not found in angiosperm?

A

Archegonium

B

Carpel

C

Anther

D

Megagametophyte

Ans:

Carpel

 

69

After fertilization develops in to

A

Integument

B

Seed

C

Embryo

D

Endosperm

Ans:

Seed

  

70

Parthenogenesis is common in

A

Grape

B

Mango

C

Citrus

D

Litchi

Ans:

Grape

  

71

An orthotropies ovule is one in which

A

Oblique to funiculus

B

At right angles to funiculus

C

In straight line with funiculus

D

Parallel to funiculus

Ans:

In straight line with funiculus

 

72

All of the following structures are found in angiosperms except?

A

Archegonium

B

Pistil

C

Anther

D

Megagametophyte

Ans:

Archegonium

 

73

Who proved that the cells are totipotent?

A

White

B

Skoog

C

Miller

D

Steward

Ans:

Steward

 

74

A typical Angio spermic embryo sac is usually.

A

One- celled

B

Tow- celled

C

Five- celled

D

Seven- celled

Ans:

Seven- celled

 

75

Father of Indian angiosperm enology is

A

B. N. john

B

B. G.L. swami

C

R. N. Kapil

D

P. Maheshwari

Ans:

P. Maheshwari

 

76

Double fertilization in angiosperms was discovered by.

A

Steads burger

B

J. C. Bose

C

Maheshwari

D

Nawas chin

Ans:

Nawas chin

 

77

Number of prothallium cells present in male gametophytes of flowering plants is

A

Zero

B

One

C

Two

D

Four

Ans:

Zero

 

78

The arrangement of the nuclei in a normal embryo sac in the dicot plants is

A

3+2+3

B

2+3+3

C

3+3+2

D

2+4+2

Ans:

3+2+3

 

79

Pollen gain is liberated at

A

One celled stage.

B

Two celled stages.

C

Three celled stages.

D

Two or three celled stages.

Ans:

Two or three celled stages.

 

80

Pollen grains can be stored in liquid nitrogen at

A

70

B

100

C

-196

D

O

Ans:

100

  

81

Among the terms listed below those that are not technically correct names for are not floral whorl are

A

Androecium

B

Carpel

C

Corolla

D

Sepal

Ans:

Androecium

  

82

How many microspore mother cells are required to produce 1000 microspores /pollen grains?  

A

250

B

200

C

150

D

100

Ans:

250

 

83

In angiosperms various stages of reductional division can best be studied in

A

Young anthers

B

Mature anthers

C

Young ovules

D

Endosperm cell

Ans:

Young anthers

 

84

A dicotyledonous plant bears flower but never produce fruits and seeds. The most probable cause of the above situation is

A

Plant is pistillate flowers only pistillate flowers

B

Plant is distillate and bears both pistillate and staminate flowers

C

Plant is monoecious

D

Plant is dioecious and bears only staminate flowers

Ans:

Plant is dioecious and bears only staminate flowers

 

85

Starting from the innermost part, the correct sequence of parts in on an ovule are

A

Egg, nucellus, embryo of parts in an ovule are

B

Egg, embryo sac, nucellus, integument,

C

Embryo sac, nucellus, integument, egg

D

Egg, integument, Embryo sac, nucellus

Ans:

Egg, embryo sac, nucellus, integument,

 

86

The true embryo develops as a result to fusion of

A

Two polar nuclei of embryo sac

B

Egg cell and male gamete

C

Synergid and male gamete

D

Male gamete and a tripodal

Ans:

Egg cell and male gamete

 

87

The anther wall consists of four wall layers where

A

Tapetum lies just inner to endothecium

B

Middle layers between endothecium and tapetum

C

Endothecium lies inner middle layers

D

Tapetum lies next to epidermis.

Ans:

Middle layers between endothecium and tapetum

 

88

From among the sets of terms given below, identify those that are associated with the gynoecium.

A

Stigma, ovule, embryo sac, placenta

B

Thalamus, pistil, style, ovule

C

Ovule, ovary, embryo sac, tapetum

D

Ovule, stamen, ovary embryo sac

Ans:

Stigma, ovule, embryo sac, placenta

 

89

Identify the wrong statement regarding post fertilization development

A

The ovary wall develops into pericarp

B

The outer integument of ovule develops into tegmen

C

The fusion nucleus develops into endosperm

D

The ovule develops into seed

Ans:

The outer integument of ovule develops into tegmen

 

90

In a typical complete, bisexual and hypogynous flower the arrangement of floral whorls on the thalamus from the outermost to the innermost is

A

Calyx, corolla, androecium and gynoecium

B

Calyx, corolla, gynoecium androecium

C

Gynoecium, androecium, corolla and calyx

D

Androecium, gynoecium, corolla and calyx

Ans:

Calyx, corolla, androecium and gynoecium

  

91

They carry the sperms from the testis and open into the

A

Rete testis

B

Epididymis

C

Sperms

D

Vade Ferens 

Ans:

Epididymis

 

92

The ejaculatory duct passes through the………and opens into the urethra

A

Urinogenital duct

B

Prostate gland

C

Urethral orifice

D

Epididymis

Ans:

Prostate gland

 

93

It opens to the outside by an opening called the urethral meatus or

A

Gubernaculum

B

Seminal fluid

C

Urethral orifice

D

Glands

Ans:

Urethral orifice

 

94

The testis is externally by a collagenous layer called

A

Tubules

B

Lobules

C

Tunica albuginea

D

Seminiferous

Ans:

Tunica albuginea

  

95

They are located in a pouch called

A

Mesodermal

B

Scrotum

C

Descend

D

Scrotal

Ans:

Scrotum

  

96

They secrete the male hormone or

A

Interstitial or Leydig

B

Androgen or testosterone

C

Seminiferous or spermatozoa

D

Seminiferous or tubules

Ans:

Androgen or testosterone

 

97

While humas and apes are

A

Continuous breeders

B

Seasonal breeders

C

Reproductive maturity

D

Juvenile phase

Ans:

Continuous breeders

 

98

The swollen tip of the penis is called

A

Scrotum

B

Prepuce

C

For elfin

D

Glans penis

Ans:

Glans penis

 

99

It now changes into a

A

Secondary follicle

B

Ovarian

C

Graafian follicle

D

Ovulation

Ans:

Secondary follicle

 

100

The …………is the male copulatory organ

A

Alkaline

B

Penis

C

Millay

D

Accessory

Ans:

Penis

  


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