Reproduction in lower and higher Animals
Multiple Choice Question (MCQ)
Maharashtra State Board class 12th
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 |
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