Q.1
on 149 In the prothallus of a vascular cryptogam, the antherozoids and eggs mature at different times. As a result:
  • a) there is no change in success rate of fertilization
  • b) there is high degree of sterility
  • c) one can conclude that the plant is Apomictic
  • d) self fertilization is prevented
Q.2
on 150 The sequence of development during the formation of endosperm is:
  • a) Archesporium → Megaspore mother cell → Megaspore → Embryo sac
  • b) Archesporium → Megaspore → Megaspore mother cell → Embryo sac
  • c) Megaspore → Archesporium → Megaspore mother cell → Embryo sac
  • d) Megaspore mother cell → spore mother cell → Embryo spore mother cell → Embryo sac
Q.3
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.
  • a) I and VII
  • b) III and VII
  • c) IV and V
  • 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?
  • a) 2: 1
  • b) 3: 1
  • c) 2: 3
  • d) 3: 2
Q.5
on 153 . Which of the following has the least number of cells in angiosperms?
  • a) Male gametophyte
  • b) Female gametophyte
  • c) Tapetum
  • d) Nucellus
Q.6
on 154 Suspensor formed during development of dicot embryo is:
  • a) 2 – 3 celled
  • b) 3 – 4 celled
  • c) 5 – 6 celled
  • 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.
  • a) Only (i) and (ii)
  • b) Only (iii) and (iv)
  • c) Only (ii) and (iv)
  • d) All are true
Q.8
on 156 Nursing tissue of ovule:
  • a) Nucellus
  • b) Chalaza
  • c) Hilum
  • d) Micropyle
Q.9
on 157 In Casaurina, the pollen tube enters into the ovule through:
  • a) Micropyle
  • b) Chalaza
  • c) Integument
  • 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:
  • a) Only (i) and (ii) are false
  • b) (i), (ii) and (iv) are false
  • c) (ii), (iii) and (iv) are false
  • d) (i), (ii), (iii) and (iv) are false
Q.11
on 159 Zygote is formed inside the
  • a) Stigma
  • b) Style
  • c) Female gametophyte
  • d) Seed
Q.12
on 160 The arrangement of flowers on the flora axis is known as
  • a) Venation
  • b) Phyllotaxy
  • c) Anthology
  • d) Aestivation
Q.13
on 161 A flower is
  • a) Modified stem
  • b) Modified leaf
  • c) Modified branch
  • d) Modified shoot
Q.14
on 162 . Micropylar end lacks
  • a) Egg cell
  • b) Synergids
  • c) Egg-apparatus
  • d) Integument
Q.15
on 163 Nucellus is mass of
  • a) Parenchymatous tisse
  • b) Sclerenchymatous tissue
  • c) Meristematic tissue
  • d) Collenchymatous tissue
Q.16
on 164 In dicot embrogenesis, the firast division in zygote is generally
  • a) oblique
  • b) longitudinal
  • c) Transverse
  • d) uncertain
Q.17
on 165 The arrangement of the ρ haploid nuclei in the normal dicot embryo sac is
  • a) 2 + 3 + 3
  • b) 2 + 3 + 2
  • c) 3 + 3 + 2
  • d) 3 + 2 + 3
Q.18
on 166 The hilum of the ovule represents the junction between
  • a) Nucellus and Embryo
  • b) Nucellus and Integuments
  • c) Funicle and Integuments
  • 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.
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion
  • c) Assertion is true but Reason is false
  • d) Both Assertion and Reason are false
Q.20
on 168 The plant part which consist of two generations, one within the other, is
  • a) Germinated pollen grain
  • b) Embryo
  • c) Unfertilized ovule
  • d) Seed
Q.21
on 169 Suspensor is made up of
  • a) 2 to 4 cells
  • b) 4 to 8 cells
  • c) 8 to 16 cells
  • d) 20 to 25 cells
Q.22
on 170 Wind pollination requires that the pollen grains are
  • a) Heavy and wet
  • b) Heavy and non-sticky
  • c) Light and dry
  • d) Heavy and sticky
Q.23
on 171 Which one of the following is the example of mitosis ?
  • a) Megasporongensis
  • b) Microsporogensis
  • c) Pollen formation
  • d) Division of generative cell
Q.24
on 172 Which part of the male gametophyte, disintegrates before fertilization ?
  • a) Generative nucleus
  • b) Tube nucleus
  • c) Male gamete
  • d) Germpore
Q.25
on 173 Transfer of a pollen grain to the stigma of the same plant is called
  • a) Antogamy
  • b) Geitonogamy
  • c) Allogamy
  • d) Homogamy
Q.26
on 174 Which phase of life cycle is dominant in the individuals of angiosperms ?
  • a) Gametophyte
  • b) Growth phase
  • c) Sporophyte
  • d) Development phase
Q.27
on 175 Fruit is a modification of
  • a) Female gametophyte
  • b) ovary
  • c) carpel
  • d) Nucellus
Q.28
on 176 An anther consists of
  • a) one microsporangium
  • b) four microsporangia
  • c) Two microsporangia
  • d) many microsporangia
Q.29
on 177 Assertion: Cleistogamous flowers are geocarpic. Reason: Growth in accordance with gravity.
  • a) Both Assertion and Reason are true and Reason is the correct explanation of Assertion
  • b) Both Assertion and Reason are true but Reason is NOT the correct explanation of Assertion
  • c) Assertion is true but Reason is false
  • d) Both Assertion and Reason are false
Q.30
on 178 Ategmic ovules are found in:
  • a) Santalum
  • b) Papaver
  • c) Michelia
  • d) All of these
Q.31
on 179 The central cell after triple fusion becomes the:
  • a) Primary endosperm cell (PEC)
  • b) Primary endosperm nucleus (PEN)
  • c) Diploid sporophyte
  • d) PEC and develops into embryo
Q.32
on 180 Caruncle is present in:
  • a) Castor
  • b) Tomato
  • c) Calotropis
  • 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:
  • a) Pseudo Parthenocarpy
  • b) Pseudocopulation
  • c) Pseudo pollination
  • 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.
  • a) All are correct
  • b) All are wrong
  • c) Only I, II, III are correct
  • d) IV and V are wrong
Q.35
on 183 Parthenocarpic tomato fruits can be produced by :
  • a) removing androecium of flowers before pollen grains are released
  • b) treating the plants with low concentrations of gibberellic acid and auxins
  • c) raising the plants from vernalized seeds
  • 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:
  • a) Sea grasses
  • b) Vallisneria
  • c) Water lily
  • d) Water hyacinth
Q.37
on 185 Commonly in mature fertilized ovule, n, 2n and 3n conditions is respectively found in:
  • a) Antipodals, synergids and integuments
  • b) Ovary, nucellus and endosperm
  • c) Antipodals, zygote and endosperm
  • 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.
  • a) (i) and (ii)
  • b) (i), (ii) and (iv)
  • c) (ii) and (iv)
  • 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
  • a) a =3 ;b=1 ;c=4 ;d=2
  • b) a =2 ;b=1 ;c=3 ;d=4
  • c) a =3 ;b=2 ;c=1 ;d=4
  • 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:
  • a) Free nuclear development
  • b) Cellular development
  • c) Helobial development
  • d) Successive type
Q.41
on 189 Identify the pollinating agents in Yucca and Ficus respectively:
  • a) Wasp and wind
  • b) Bees and bat
  • c) Moth and Blastophaga
  • 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.
  • a) (ii), (iii) and (iv)
  • b) (i) and (ii)
  • c) (i), (iii) and (iv)
  • 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:
  • a) 8, 8, 16, 24
  • b) 8, 8, 16, 16
  • c) 16, 16, 32, 48
  • d) 8, 8, 16, 46
Q.44
on 204 In Papaver:
  • a) Flower is monocarpellary
  • b) Flower is multicarpellary apocarpous
  • c) Flower is multicarpellary syncarpous
  • d) Flower is cleistogamous
Q.45
on 205 Pinus seeds cannot germinate and establish without the presence of:
  • a) Anabaena
  • b) Wasp
  • c) Mycorrhiza
  • d) Moth
Q.46
on 206 Select the wrong pair:
  • a) Megagametophyte – embryo sac
  • b) Microsporangium – anther
  • c) Male gametophyte – pollen grain
  • d) Microsporophyll – pistil
Q.47
on 207 Anthers and stigma lies close to each other in:
  • a) Chasmogamous flowers
  • b) Cleistogamous flowers
  • c) Herkogamous flowers
  • 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.
  • a) (iii), (iv) and (v)
  • b) (i), (ii) and (v)
  • c) (i), (iii) and (iv)
  • d) (ii), (iii) and (v)
Q.49
on 209 Anemophilous plants have:
  • a) Enormous and small light pollen
  • b) Small and inconspicuous flowers
  • c) Reduction in number of ovules in ovary
  • d) All of these
Q.50
on 210 The intine of the pollen grain is a:
  • a) Thick and discontinuous layer made of sporopollenin
  • b) Thick and continuous layer made of sporopollenin
  • c) Thin and discontinuous layer made of cellulose and pectin
  • d) Thin and continuous layer made of cellulose and pectin
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