NEET Biology MCQ - Sexual Reproduction In Flowering Plants Mcq - Quiz-3 Solution

Q.1.

Type of pollination in which genetically different pollen grains are brought over stigma is ... .... [ AMU 2012]

14%
a) Geitonogamy
12%
b) Chasmogamy
65%
c) Xenogamy
9%
d) Cleistogamy

Explanation

Q.2.

Number of chromosomes in an angiospermic plant isNumber of chromosomes in synergid cells will be ... .... [ MPPMT 2007 ]

24%
a) 28
7%
b) 21
37%
c) 14
33%
d) 7

Explanation

Q.3.

Study of pollen grains is ... .. [ BHU 1995 ]

72%
a) Palynology
14%
b) Palaeontology
9%
c) Palaeobotany
5%
d) None of the above

Explanation

Q.4.

Pollination by ants is ... ... [ AIIMS 1999 ]

8%
a) Malacophily
38%
b) Myrmecophily
38%
c) Entomophily
16%
d) Ornithophily

Explanation

Q.5.

Female gametophyte of angiosperms is represented by ,,, ,,, [ CBSE 1990 ]

20%
a) Ovule
28%
b) Megaspore mother cell
50%
c) Embryo sac
2%
d) Nucellus

Explanation

Q.6.

The process of transfer of pollen grains from anther to stigmatic surface of flower with the help of water is ... ... [ JKCMEE 2005 ]

4%
a) Anemophily
94%
b) Hydrophily
0%
c) Zoophily
2%
d) Ornithophily

Explanation

Q.7.

A diploid egg, formed in embryo sac developed directly from nucellus, parthenogenetically grows into embryo. The apomixis is ... ... [ CET Chd. 1997 ]

21%
a) Vegetative apomixis
48%
b) Adventitious apomixis
7%
c) Diplospory
24%
d) Apospory

Explanation

Q.8.

Thread-like pollen without exine are found in ... ... [ DPMT 2011]

47%
a) Hydrophily
9%
b) Entomophily
16%
c) Anemophily
28%
d) Chiropterophily

Explanation

Q.9.

A unique phenomenon observed in the embryo sac of angiosperms is ... .. [ JIPMER

4%
a) Fusion of gametes
9%
b) Double fusion
23%
c) Triple fusion
64%
d) Triple fusion and double fertilization

Explanation

Q.10.

Double fertilization and triple fusion were discovered by .. ... [ BHU 1999 ]

22%
a) Hofmeister
39%
b) Nawaschin and Guignard
14%
c) Leeuwenhoek
25%
d) Strasburger

Explanation

Q.11.

Match the columns and choose the correct combination

I	II
1) Funicle	a) Small opening of ovule
2) Integuments	b) Stalk of ovule
3) Chalaza	c) Protective envelopes of ovule
4) Hilum	d) Junction part of ovule and stalk
5) Micropyle	e) Basal part of ovule

81%
a) 1 - b, 2 - c, 3 - e, 4 - d, 5 - a
6%
b) 1 - a, 2 - c, 3 - b, 4 - d, 5 - e
8%
c) 1 - b, 2 - c, 3 - a, 4 - d, 5 - e
6%
d) 1 - b, 2 - d, 3 - e, 4 - a, 5 - c

Explanation

Q.12.

Match the columns and select the correct combination

a) Ovule	1) Endosperm
b) Funiculus	2) Aril
c) Nucellus	3) Seed
d) Polar nuclei	4) Perisperm

18%
a) a - 3, b - 2, c - 1, d - 4
73%
b) a - 3, b - 2, c - 4, d - 1
6%
c) a - 1, b - 2, c - 3, d - 4
3%
d) a - 2, b - 3, c - 1, d - 4

Explanation

Q.13.

Perisperm is ... .. [ DPMT 1996 ]

12%
a) outer part of embryo sac
3%
b) degenerate synergid
15%
c) degenerate secondary nucleus
71%
d) remains of nucellus

Explanation

Q.14.

Anemophily occurs is ... ... [ EAMCET 1999 ]

89%
a) grasses
6%
b) legume
3%
c) Euphorbia
3%
d) Annona

Explanation

Q.15.

Pollination is ... ... [ AFMC 1994 ]

100%
a) Transfer of pollen from anther to stigma
0%
b) Shedding of pollen grains from anthers
0%
c) Dispersal of pollen
0%
d) Fertilization of plants

Explanation

Q.16.

Radicle and of embryo is towards ... ... [ Wardha 2003 ]

21%
a) Hilum
24%
b) Chalaza
6%
c) Funicle
48%
d) Micropyle

Explanation

Q.17.

Cleistogamy is effective in ... ... [ DPMT 1997]

20%
a) Oryza sativa
33%
b) Brassica campestris
7%
c) Allium cepa
40%
d) Pisum sativum

Explanation

Q.18.

A typical dicotyledonous embryo consists of .. .. [ CET Chd. 2010 ]

3%
a) Radicle only
88%
b) Radicle, embryonal axis and cotyledons
6%
c) Cotyledons only
3%
d) Embryo axis only

Explanation

Q.19.

Zygote of Capsella bursa - pastoris undergoes ... ... [ RPMT 1998 ]

33%
a) Longitudinal division
26%
b) Equal transverse division
30%
c) Unequal transverse division
11%
d) Oblique division

Explanation

Q.20.

Milky water of green Coconut is ... .. [ JIPMER 200 ]

0%
a) Liquid chalaza
6%
b) Liquid nucellus
88%
c) Liquid endosperm
6%
d) Liquid female gametophyte

Explanation

Q.21.

Which one is wrong ... ... [ CBSE 2012]

6%
a) Vegetative cell is larger than generative cell
12%
b) Intine is made of cellulose and pectin
12%
c) Pollen grains of some plants remain viable for months
71%
d) Double fertilization is absent where pollen is shed in 2-celled stage

Explanation

Q.22.

Fusion of male gamete with egg in embryo sac is ... ... [ HPPMT 2007 ]

6%
a) Autogamy
58%
b) Syngamy
22%
c) Double fertilisation
14%
d) Triple fusion

Explanation

Q.23.

Process of fusion between male and egg nuclei is ... ... [ MPPMT 1995 ]

71%
a) Syngamy
19%
b) Double fertilization
0%
c) Conjugation
10%
d) Triple fusion

Explanation

Q.24.

ion 65 Why do seeds need water to germinate?

78%
a) Following hydration, enzymes break down stored food and make it available for the embryo
0%
b) Water provides energy
6%
c) Water activates the chlorophyll molecules so that photosynthesis can begin
16%
d) Water dissolves the minerals in the soil so that they become available to the seed

Explanation

Q.25.

There are 10 flowers in plant of Crotalaria. In each microsporangium there are 30 microspore mother cells. How many pollen grains are formed from that plant.

6%
a) 4000
26%
b) 10,000
23%
c) 24,000
45%
d) 48,0000

Explanation

Q.26.

Meiosis is best observed in dividing ... ... [ AIIMS 1992 ]

11%
a) Cells of apical meristem
11%
b) Cells of lateral meristem
52%
c) Microspores and anther wall
26%
d) Microsporocytes

Explanation

Q.27.

evelopment of seedless fruit in an unfertilized flower is called ... .. [ JKCMEE 2005 ]

93%
a) Parthenocarpy
7%
b) Sporophytic budding
0%
c) Polyembryony
0%
d) Micropropagation

Explanation

Q.28.

Pollination by snails and slugs is ... ... [ AIIMS 1998]

7%
a) Ornithophily
21%
b) Chiropterophily
7%
c) Entomophily
64%
d) Malacophily

Explanation

Q.29.

Cleistogamy does not require anthesis because ... ... [ AIIMS 2011 ]

89%
a) No pollination agent is required
7%
b) it assures heterozygosity
4%
c) It allows xenogamy
0%
d) It favours insect pollination

Explanation

Q.30.

Tapetum occurs in ... .. [ BHU 2007 ]

56%
a) Anther wall
11%
b) Ovary wall
30%
c) Male gametophyte
4%
d) Female gametophyte

Explanation

Q.31.

famous embryologist of India who also advanced the science of morphology and tissue culture in India is .. ... [ JIPMER 2000 ]

68%
a) P. Maheshwari
16%
b) T.S. Sadasivan
8%
c) Swaminathan
8%
d) Ramdas

Explanation

Q.32.

Match the columns and choose the correct combination

I	II
a) Cleistogamy	m) Insect pollination
b) Geitonogamy	n) Bud pollination
c) Entomophily	o) Pollination between flowers of the same plant
d) Xenogamy	p) Wind pollination
- -	q) Cross pollination

8%
a) a - m, b - q, c - n, d - o
83%
b) a - n, b - o, c - m, d - q
4%
c) a - q, b - p, c - o, d - n
4%
d) a - o, b - m, c - q, d - n

Explanation

Q.33.

Arrangement of nuclei in normal dicot embryo sac is ... ... [ CBSE 2006 ]

27%
a) 3 + 3 + 2
0%
b) 2 + 4 + 2
62%
c) 3 + 2 +3
12%
d) 2 + 3 + 3

Explanation

Q.34.

At the time of anther dehiscence ...

12%
a) Middle layers develop fibrous thickenings
31%
b) Epidermis degenerates
42%
c) Endothecium develops fibrous thickenings
15%
d) Endothecium degenerates

Explanation

Q.35.

Multinucleate condition is present in .. ... [ Har PMT 2000 ]

8%
a) Quiescent centre
19%
b) Maize
12%
c) Meristematic tissue
62%
d) Liquid endosperm of Coconut

Explanation

Q.36.

Synergids are ... ... [ AMU 2010 ]

4%
a) Hexaploid
67%
b) Haploid
26%
c) Diploid
4%
d) Triploid

Explanation

Q.37.

Endosperm of flowering plants develops from ... ... [ kerala 2002 ]

12%
a) Haploid nucleus
54%
b) Diploid nucleus
27%
c) Triploid nucleus
8%
d) Polyploid nucleus

Explanation

Q.38.

Chief pollinators of agricultural crops are ... ... [ CBSE 1994 ]

4%
a) Butterflies
87%
b) Bees
4%
c) Moths
4%
d) Beetles

Explanation

Q.39.

Type of ovule present in Opuntia is ... .. [ CET Chd .2011 ]

31%
a) Amphitropous
15%
b) Campylotropous
31%
c) Circinotropous
23%
d) Orthotropous

Explanation

Q.40.

Both autogamy and geitonogamy cannot occur in ... ... [ CBSE 2012 ]

62%
a) Papaya
12%
b) Cucumber
8%
c) Castor
17%
d) Maize

Explanation

Q.41.

Chromosome number in flowering plant can be ... ... [ AFMC 1997 ]

58%
a) Haploid, diploid and polyploid
38%
b) Haploid and diploid
4%
c) Only diploid
0%
d) Only haploid

Explanation

Q.42.

The ovary after fertilization is converted into .. ... [ JKCMEE 2008 ]

0%
a) Embryo
92%
b) Fruit
4%
c) Endosperm
4%
d) Seed

Explanation

Q.43.

Pericarp of fruit develops from ... ... [ MPPMT 2003 ]

78%
a) Wall of ovary
7%
b) Nucellus
7%
c) Funicle
7%
d) Seed coat

Explanation

Q.44.

Cells present in mature male gametophyte of angiosperms is ... ... [ RPMT 1995 ]

4%
a) One
57%
b) Two
30%
c) Three
9%
d) Four

Explanation

Q.45.

Heaping of earth around base of stem in Potato is meant for ... .... [ AIIMS 1999 ]

21%
a) Preventing exposure of roots
16%
b) Providing extra support to delicate stem
47%
c) Inducing development of more auxiliary shoots
16%
d) Making more water available

Explanation

Q.46.

Formation of gametophyte directly from sporophyte without meiosis is .. ... [ CPMT 1999 ]

37%
a) Apospory
16%
b) Apogamy
26%
c) Parthenogenesis
21%
d) Amphimixis

Explanation

Q.47.

Wind pollinated flowers are ... ... [ manipal 2003 ]

29%
a) Small, scented and colourless
33%
b) Small, nonscented and colourless
17%
c) Big, scented and coloured
21%
d) Big, nonscented and colourless

Explanation

Q.48.

Development of female gametophyte directly from megaspore mother cell without meiosis is called .. .... [ CPMT 1995 ]

45%
a) Apogamy
18%
b) Apospory
9%
c) Syngamy
27%
d) Parthenospore

Explanation

Q.49.

Pollen grains have spiny exine to aid in ... ... [ MHTCET 2009]

27%
a) Entomophily
32%
b) Anemophily
14%
c) Ornithophily
27%
d) Chiropterophily

Explanation

Q.50.

Nawaschin (1898) discovered double fertilization in ... ... [ MPPMT 1997]

32%
a) Lilium and Fritillaria
16%
b) Brassica and Iberis
24%
c) Papaya and Pea
28%
d) Mango and Sugarcane

Explanation

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