on 151 Which of the following statements is false? I. Pollen grains represents immature male gametophyte II. In angiosperms partially developed male gametophytes are pollinated III. Generative cell is siponogenous while vegetative cell is spermatogenous IV. Formation and differentiation of pollen grains is called microsporogenesis V. Hay fever is a pollen allergy. VI. Pollen grains of some plants produce severe allergy and respiratory or bronchial diseases. VII. Pollen grains are poor in nutrients.
50%
a) I and VII
25%
b) III and VII
25%
c) IV and V
0%
d) VI and VII
Q.4.
on 152 What is the ratio of equational division that is taking place in Cycas to angiosperms respectively leading to the formation of male gametes from pollen grains?
57%
a) 2: 1
14%
b) 3: 1
14%
c) 2: 3
14%
d) 3: 2
Q.5.
on 153 . Which of the following has the least number of cells in angiosperms?
40%
a) Male gametophyte
50%
b) Female gametophyte
10%
c) Tapetum
0%
d) Nucellus
Q.6.
on 154 Suspensor formed during development of dicot embryo is:
75%
a) 2 – 3 celled
12%
b) 3 – 4 celled
12%
c) 5 – 6 celled
0%
d) 6 – 10 celled
Q.7.
on 155 Relate the following scientists and their contribution in plant embryology. Choose the correct pair: (i) Strasburger – Discovered syngamy in Monotropa. (ii) Nawaschin – Discovered double fertilization in Fritillaria and Lillium. (iii) Amici – Discovered the role of pollen tube in fertilization in Portulaca. (iv) Leuwenhoek – Discovered Polyembryony in citrus. (v) Guha and Maheshwari – First done the anther culture in Datura.
25%
a) Only (i) and (ii)
25%
b) Only (iii) and (iv)
25%
c) Only (ii) and (iv)
25%
d) All are true
Q.8.
on 156 Nursing tissue of ovule:
67%
a) Nucellus
0%
b) Chalaza
17%
c) Hilum
17%
d) Micropyle
Q.9.
on 157 In Casaurina, the pollen tube enters into the ovule through:
38%
a) Micropyle
38%
b) Chalaza
25%
c) Integument
0%
d) Funicle
Q.10.
on 158 Consider the following statements regarding endospermous seeds: (i) Cotyledons are thick. (ii) Found predominantly in dicots. (iii) Food materials are stored in endosperm. (iv) Found in castor, gram and pea. Of the above statements:
25%
a) Only (i) and (ii) are false
0%
b) (i), (ii) and (iv) are false
25%
c) (ii), (iii) and (iv) are false
50%
d) (i), (ii), (iii) and (iv) are false
Q.11.
on 159 Zygote is formed inside the
17%
a) Stigma
17%
b) Style
33%
c) Female gametophyte
33%
d) Seed
Q.12.
on 160 The arrangement of flowers on the flora axis is known as
0%
a) Venation
17%
b) Phyllotaxy
17%
c) Anthology
67%
d) Aestivation
Q.13.
on 161 A flower is
29%
a) Modified stem
0%
b) Modified leaf
14%
c) Modified branch
57%
d) Modified shoot
Q.14.
on 162 . Micropylar end lacks
33%
a) Egg cell
0%
b) Synergids
33%
c) Egg-apparatus
33%
d) Integument
Q.15.
on 163 Nucellus is mass of
57%
a) Parenchymatous tisse
14%
b) Sclerenchymatous tissue
0%
c) Meristematic tissue
29%
d) Collenchymatous tissue
Q.16.
on 164 In dicot embrogenesis, the firast division in zygote is generally
17%
a) oblique
33%
b) longitudinal
50%
c) Transverse
0%
d) uncertain
Q.17.
on 165 The arrangement of the ρ haploid nuclei in the normal dicot embryo sac is
17%
a) 2 + 3 + 3
17%
b) 2 + 3 + 2
33%
c) 3 + 3 + 2
33%
d) 3 + 2 + 3
Q.18.
on 166 The hilum of the ovule represents the junction between
20%
a) Nucellus and Embryo
40%
b) Nucellus and Integuments
0%
c) Funicle and Integuments
40%
d) Funicle and ovule
Q.19.
on 167 A : Insects flowers to gather honey R : Attraction of flowers prevents the insects from damaging other parts of the plants.
50%
a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
50%
b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion
0%
c) Assertion is true but Reason is false
0%
d) Both Assertion and Reason are false
Q.20.
on 168 The plant part which consist of two generations, one within the other, is
50%
a) Germinated pollen grain
50%
b) Embryo
0%
c) Unfertilized ovule
0%
d) Seed
Q.21.
on 169 Suspensor is made up of
40%
a) 2 to 4 cells
20%
b) 4 to 8 cells
40%
c) 8 to 16 cells
0%
d) 20 to 25 cells
Q.22.
on 170 Wind pollination requires that the pollen grains are
0%
a) Heavy and wet
0%
b) Heavy and non-sticky
80%
c) Light and dry
20%
d) Heavy and sticky
Q.23.
on 171 Which one of the following is the example of mitosis ?
29%
a) Megasporongensis
29%
b) Microsporogensis
0%
c) Pollen formation
43%
d) Division of generative cell
Q.24.
on 172 Which part of the male gametophyte, disintegrates before fertilization ?
0%
a) Generative nucleus
75%
b) Tube nucleus
0%
c) Male gamete
25%
d) Germpore
Q.25.
on 173 Transfer of a pollen grain to the stigma of the same plant is called
25%
a) Antogamy
25%
b) Geitonogamy
25%
c) Allogamy
25%
d) Homogamy
Q.26.
on 174 Which phase of life cycle is dominant in the individuals of angiosperms ?
0%
a) Gametophyte
60%
b) Growth phase
40%
c) Sporophyte
0%
d) Development phase
Q.27.
on 175 Fruit is a modification of
0%
a) Female gametophyte
60%
b) ovary
40%
c) carpel
0%
d) Nucellus
Q.28.
on 176 An anther consists of
17%
a) one microsporangium
67%
b) four microsporangia
17%
c) Two microsporangia
0%
d) many microsporangia
Q.29.
on 177 Assertion: Cleistogamous flowers are geocarpic. Reason: Growth in accordance with gravity.
33%
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
33%
c) Assertion is true but Reason is false
0%
d) Both Assertion and Reason are false
Q.30.
on 178 Ategmic ovules are found in:
33%
a) Santalum
33%
b) Papaver
33%
c) Michelia
0%
d) All of these
Q.31.
on 179 The central cell after triple fusion becomes the:
40%
a) Primary endosperm cell (PEC)
40%
b) Primary endosperm nucleus (PEN)
20%
c) Diploid sporophyte
0%
d) PEC and develops into embryo
Q.32.
on 180 Caruncle is present in:
33%
a) Castor
0%
b) Tomato
33%
c) Calotropis
33%
d) Ophrys
Q.33.
on 181 An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female of his species and tries to copulate with it, thereby pollinating the flower. This phenomenon is called:
67%
a) Pseudo Parthenocarpy
33%
b) Pseudocopulation
0%
c) Pseudo pollination
0%
d) Pseudo fertilization
Q.34.
on 182 Self-incompatibility: I. Is a device to prevent inbreeding. II. Provides a biochemical block to self-fertilization. III. Ensures cross-fertilization. IV. Is governed by pollen-pistil interaction V. Is governed by series of multiple alleles. VI. Prevents self pollen (from the same flower or other flowers of the same plant) from fertilizing the ovules inhibiting pollen germination or pollen tube growth in the pistil.
67%
a) All are correct
33%
b) All are wrong
0%
c) Only I, II, III are correct
0%
d) IV and V are wrong
Q.35.
on 183 Parthenocarpic tomato fruits can be produced by :
33%
a) removing androecium of flowers before pollen grains are released
33%
b) treating the plants with low concentrations of gibberellic acid and auxins
0%
c) raising the plants from vernalized seeds
33%
d) treating the plants with phenyl mercuric acetate
Q.36.
on 184 Female flowers remain submerged in water and the pollen grains are released inside the water in:
0%
a) Sea grasses
50%
b) Vallisneria
50%
c) Water lily
0%
d) Water hyacinth
Q.37.
on 185 Commonly in mature fertilized ovule, n, 2n and 3n conditions is respectively found in:
80%
a) Antipodals, synergids and integuments
0%
b) Ovary, nucellus and endosperm
0%
c) Antipodals, zygote and endosperm
20%
d) Endosperm, nucellus and egg
Q.38.
on 186 Which of the following statement about sporopollenin is false: (i) Exine is made up of sporopollenin. (ii) Sporopollenin is one of the most resistant organic materials. (iii) Exine has apertures called germ pores where sporopollenin is present. (iv) Sporopollenin can withstand high temperature and strong acids.
33%
a) (i) and (ii)
33%
b) (i), (ii) and (iv)
33%
c) (ii) and (iv)
0%
d) (iii) only
Q.39.
on 187 Match the following
a. Pistils fused together
Gametogenesis
b. Formation of gametes
Pistillate
c. Formation of embryo
Syncarpous
d. Unisexual female flowers
Embryogenesis
67%
a) a =3 ;b=1 ;c=4 ;d=2
33%
b) a =2 ;b=1 ;c=3 ;d=4
0%
c) a =3 ;b=2 ;c=1 ;d=4
0%
d) a =1 ;b=2 ;c=3 ;d=4
Q.40.
on 188 During endosperm development, every karyokinesis is not followed by cytokinesis in the case of:
0%
a) Free nuclear development
33%
b) Cellular development
0%
c) Helobial development
67%
d) Successive type
Q.41.
on 189 Identify the pollinating agents in Yucca and Ficus respectively:
0%
a) Wasp and wind
0%
b) Bees and bat
67%
c) Moth and Blastophaga
33%
d) Moth and Dielis
Q.42.
on 202 Which of the following is true regarding Polyembryony? (i) Formed due to the presence of more than one embryo sac in an ovule. (ii) Presence of more than one egg cell in an embryo sac. (iii) Fertilization between synergids. (iv) Fertilization between antipodals.
33%
a) (ii), (iii) and (iv)
67%
b) (i) and (ii)
0%
c) (i), (iii) and (iv)
0%
d) (i), (ii), (iii) and (iv)
Q.43.
on 203 The number of chromosomes in radicle isWhat will be the number of chromosomes in the tube nucleus, antipodal cells, proembryo and endosperm respectively:
67%
a) 8, 8, 16, 24
0%
b) 8, 8, 16, 16
33%
c) 16, 16, 32, 48
0%
d) 8, 8, 16, 46
Q.44.
on 204 In Papaver:
25%
a) Flower is monocarpellary
25%
b) Flower is multicarpellary apocarpous
0%
c) Flower is multicarpellary syncarpous
50%
d) Flower is cleistogamous
Q.45.
on 205 Pinus seeds cannot germinate and establish without the presence of:
33%
a) Anabaena
0%
b) Wasp
67%
c) Mycorrhiza
0%
d) Moth
Q.46.
on 206 Select the wrong pair:
25%
a) Megagametophyte – embryo sac
50%
b) Microsporangium – anther
0%
c) Male gametophyte – pollen grain
25%
d) Microsporophyll – pistil
Q.47.
on 207 Anthers and stigma lies close to each other in:
25%
a) Chasmogamous flowers
50%
b) Cleistogamous flowers
25%
c) Herkogamous flowers
0%
d) Heterostylous flowers
Q.48.
on 208 Pick up the correct statements from those given below: (i) In western countries, pollen consumption has been claimed to increase the performance of athletes and race horses. (ii) The viability of pollen grains in some members of rosaceae, leguminosae and solanaceae are few years. (iii) Multicarpellary and apocarpous gynoecium is found in Michelia. (iv) In pollen banks, the pollen grains of large number of species are stored in liquid nitrogen at - 196ºC. (v) Micropyle present at the basal part of ovule.
33%
a) (iii), (iv) and (v)
0%
b) (i), (ii) and (v)
33%
c) (i), (iii) and (iv)
33%
d) (ii), (iii) and (v)
Q.49.
on 209 Anemophilous plants have:
25%
a) Enormous and small light pollen
25%
b) Small and inconspicuous flowers
0%
c) Reduction in number of ovules in ovary
50%
d) All of these
Q.50.
on 210 The intine of the pollen grain is a:
0%
a) Thick and discontinuous layer made of sporopollenin
25%
b) Thick and continuous layer made of sporopollenin
75%
c) Thin and discontinuous layer made of cellulose and pectin
0%
d) Thin and continuous layer made of cellulose and pectin
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