on 271 Which of the following plants possess protogynous flowers?
15%
a) Aristolochia
0%
b) Passiflona
31%
c) Primrose
54%
d) All of these
Q.3.
on 272 A typical anther contains 100 pollen mother cells per microsporangium. How many male gametes can be produced by this anther?
17%
a) 100
50%
b) 200
17%
c) 1600
17%
d) 3200
Q.4.
on 273 How many meiotic divisions are required to produce 64 pollen grains:
58%
a) 16
8%
b) 32
25%
c) 64
8%
d) 80
Q.5.
on 274 Dicot plants have two cotyledons in a seed. In monocot, the first cotyledon is called Scutellum while the second cotyledon is rudimentary and is called:
36%
a) Epiblast
18%
b) Epiplast
27%
c) Apoplast
18%
d) None
Q.6.
on 275 In Michelia, gynoecium is:
36%
a) Monocarpellary and syncarpous
18%
b) Multicarpellary and apocarpous
18%
c) Bicarpellary and apocarpous
27%
d) Multicarpellary and syncarpous
Q.7.
on 276 How many of the following are pollinated by insects? (i) Lobia. (ii) Tobacco. (iii) Cucumber. (iv) Cotton. (v) Eucalyptus. (vi) Onion.
0%
a) 2
55%
b) 3
18%
c) 5
27%
d) 6
Q.8.
on 277 Assertion: Generally megaspore mother cell undergoes meiosis to produce four megaspores in angiosperms. Reason: Megaspore is the first cell of male gametophyte.
42%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
33%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion
25%
c) Assertion is true but Reason is false
0%
d) Both Assertion and Reason are false
Q.9.
on 278 Unusual development of plant from the haploid cells of female gametophyte other than egg through mitosis is:
0%
a) Apospory
27%
b) Apogamy
55%
c) Parthenogenesis
18%
d) Parthenocarpy
Q.10.
on 279 The root cell of wheat plant has 42 chromosomes. What would be the number of chromosomes in the synergid cell ?
45%
a) 21
27%
b) 7
18%
c) 28
9%
d) 14
Q.11.
on 280 Root cap of the embryo develops from
36%
a) Basal cell
27%
b) Apical cell
9%
c) Hypophysis
27%
d) Hypocotyl
Q.12.
on 281 A single ovule produces
10%
a) 3 female gamete
70%
b) 1 female gamete
10%
c) 2 female gamete
10%
d) 4 female gamete
Q.13.
on 282 Stamen show homology with
27%
a) Gametophyte
18%
b) male cone
36%
c) Microsporophyll
18%
d) Sporangium
Q.14.
on 283 Typical anther normally consists of
0%
a) One lobe Four sporangia
18%
b) Two lobe Two sporangia
82%
c) Two lobe Four sporangia
0%
d) One lobe Two sporangia
Q.15.
on 284 Which is the most resistant natural organic material ?
27%
a) Cellulose
9%
b) Pectin
18%
c) Suberin
45%
d) Sporopollenin
Q.16.
on 285 Germpores are actually
0%
a) Apertures in intine
0%
b) Thick area in intine
70%
c) Apertures in exine
30%
d) Thin area in intine
Q.17.
on 286 The adaptation for self-pollination is
9%
a) Herkogamy
64%
b) Cleistogamy
9%
c) Dichogamy
18%
d) Homogamy
Q.18.
on 287 Which of the following is the basal part of ovule ?
20%
a) placenta
10%
b) Hilum
50%
c) Micropyle
20%
d) chalaza
Q.19.
on 288 Pollen grains germinate on
9%
a) Any surface
73%
b) Stigma
9%
c) soil
9%
d) Ovule
Q.20.
on 289 The seed coat develops from
0%
a) Embryo sac
20%
b) Inner integument
30%
c) Nucellus
50%
d) Outer integument
Q.21.
on 290 How many of the following plants produce polyembryonic seeds? (i) Orchids. (ii) Castor. (iii) Lillium. (iv) Orange. (v) Citrus.
10%
a) One
20%
b) Two
40%
c) Three
30%
d) Four
Q.22.
on 291 Which of the following is true regarding Integumentary tapetum?
50%
a) Nutritive tissue of integument functionally similar to nucellus
25%
b) Nutritive tissue of nucellus functionally similar to integument
0%
c) Chalazosperm nutritive tissue of nucellus
25%
d) Both B and C
Q.23.
on 292 Longest pollen tube is found in:
11%
a) Mirabilis
67%
b) Maize
22%
c) Myosotis
0%
d) Nymphaea
Q.24.
on 293 Polyspory condition is present in:
33%
a) Cuscuta
0%
b) Annona
22%
c) Mimosa
44%
d) All of these
Q.25.
on 294 The egg apparatus is made up of two ____ and one ____ located in _____ end.
0%
a) Antipodals, egg cell, micropylar
0%
b) Antipodals, egg cell, chalazal
78%
c) Synergids, egg cell, micropylar
22%
d) Synergids, egg cell, chalazal
Q.26.
on 295 Which of the following plant have many ovules in its ovary?
0%
a) Mango
78%
b) Watermelon
11%
c) Wheat
11%
d) Rice
Q.27.
on 296 . Megasporangium represents:
33%
a) Ovule
33%
b) Megagametophyte
11%
c) Embryo sac
22%
d) Pistil
Q.28.
on 297 Which of the following pair is wrong?
22%
a) Endospermic seeds – Maize
22%
b) Pollen allergy – Parthenium
11%
c) Integumentary tapetum – Nourishment of microspores
44%
d) Apomixis – Grasses
Q.29.
on 298 Xenia is exhibited by:
11%
a) Seed coat
11%
b) Pericarp
33%
c) Endosperm
44%
d) All of these
Q.30.
on 299 The most common type of ovules in gymnosperms and angiosperms are:
22%
a) Orthotropous and anatropous
67%
b) Anatropous and Orthotropous
0%
c) Orthotropous and circinotropous
11%
d) Circinotropous and Orthotropous
Q.31.
on 300 If a flower possesses a gynoecium made up of 5 carpels, what will be the number of meiosis in that gynoecium?
11%
a) One
56%
b) Five
11%
c) Twenty
22%
d) Numerous
Q.32.
on 301 Papaver possess:
22%
a) Multicarpellary apocarpous pistils
67%
b) Multicarpellary syncarpous pistils
0%
c) Monocarpellary pistils
11%
d) Pentacarpellary syncarpous pistils
Q.33.
on 302 Identify the pollinating agent in Lobia:
33%
a) Insect
33%
b) Birds
22%
c) Wind
11%
d) Water
Q.34.
on 303 How many nuclei are involved in double fertilization?
11%
a) Four
11%
b) Five
67%
c) Two
11%
d) Eight
Q.35.
on 304 Tetrahedral tetrads are found in:
11%
a) Monocots
11%
b) Dicots
11%
c) Maize
67%
d) Both A and C
Q.36.
on 305 Which of the following is an endospermous seed?
11%
a) Pea
33%
b) Barely
33%
c) Groundnut
22%
d) Gram
Q.37.
on 306 How many of the following are characteristics of dicot embryo? (i) Tigellum. (ii) Epicotyls. (iii) Coleorhiza. (iv) Coleoptile.
33%
a) 2
22%
b) 3
22%
c) 1
22%
d) 4
Q.38.
on 307 Integument originates from:
33%
a) Funicle
11%
b) Hilum
44%
c) Base of ovule
11%
d) Apex of ovule
Q.39.
on 308 Persistent nucellus is called:
20%
a) Endosperm
40%
b) Perisperm
40%
c) Epiblast
0%
d) Scutellum
Q.40.
on 309 Which of the following layer of anther wall has deposition of α cellulose in radial and tangential walls and helps in dehiscence of anther?
22%
a) Epidermis
22%
b) Middle layers
44%
c) Endothecium
11%
d) Tapetum
Q.41.
on 310 Endosperm is persistent in mature seed and is used during seed germination in:
33%
a) Pea and castor
22%
b) Coconut and bean
44%
c) Castor and groundnut
0%
d) Groundnut and castor
Q.42.
on 311 In a mature embryo sac, the central cell is:
22%
a) Uninucleate
44%
b) Binucleated
11%
c) Four nucleate
22%
d) Eight nucleated
Q.43.
on 312 Nucellar Polyembryony is found in:
11%
a) Gossypium
33%
b) Triticum
33%
c) Brassica
22%
d) Citrus limon
Q.44.
on 313 Identify the type of ovule present in Piper nigrum:
33%
a) Anatropous
33%
b) Orthotropous
0%
c) Campylotropus
33%
d) Amphitropus
Q.45.
on 314 Adventive embryony (from integuments) occur in:
0%
a) Spiranthus
25%
b) Citrus
50%
c) Mangifera
25%
d) Opuntia
Q.46.
on 315 Which of the following is a non endospermic monocot seed?
0%
a) Orchid
67%
b) Vallisneria
11%
c) Maize
22%
d) Both (A) and (B)
Q.47.
on 316 Carpel is formed of
22%
a) Two part
22%
b) Three part
33%
c) Four part
22%
d) Seven part
Q.48.
on 317 Pollen grain are produced in
11%
a) Nucellus
44%
b) Stigma
44%
c) Anther
0%
d) Chalaza
Q.49.
on 321 During the development of monosporic development of embryo sac the nucleus of the functional megaspore divides
22%
a) Two times
44%
b) Three times
11%
c) One time
22%
d) Repeatedly
Q.50.
on 322 Embryo sac is formed inside
0%
a) Seed
22%
b) Endosperm
44%
c) Embryo
33%
d) Ovule
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