Reproduction in lower and higher Animals 12 biology

 

Reproduction in lower and higher Animals

Multiple Choice Question (MCQ)

Maharashtra State Board class 12^th Biology MCQ Chapter 2

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