Q.1
ion 44 Match the following
a. Place where the pollen grains land Spore mother cells
b. The site where seeds develop Stigma
c. Reproductive cells that have exactly the same number of chromosomes as that of parent plant Microspore mother cells
d. Meiotically dividing cells in the male reproductive tissue that make four microspores Ovary
  • a) a=1 ;b=2 ;c=3 ;d=4
  • b) a=2 ;b=4 ;c=1 ;d=3
  • c) a=4 ;b=3 ;c=2 ;d=1
  • d) a=1 ;b=2 ;c=4 ;d=3
Q.2
ion 45 How many mitotic divisions are required for the formation of polygonum type of embryo sac from a functional megaspore?
  • a) 2
  • b) 1
  • c) 4
  • d) 3
Q.3
ion 46 Select the wrong pair:
  • a) Wind – Cannabis – Anemophily
  • b) Water – Zostera – Hydrophily
  • c) Insects – Salvia – Entemophily
  • d) Birds – Adansonia – Ornithophily
Q.4
ion 47 Which among the following is not a morphological character of anemophilous flowers?
  • a) Well exposed stamens and large feathery stigma to easily trap air borne pollen grains
  • b) Flowers often have many ovules in the ovary and solitary flowers are common
  • c) The pollen grains are light in weight and non – sticky
  • d) Flowers or inflorescence are on long stalk
Q.5
ion 48 The following is the diagram of T.S. of anther. Identify the parts labelled A, B and C.
unit-6_ch-4_que_no-48_img_no1.png
  • a) A - Connective tissue, B - Pollen grains, C – Endothecium
  • b) A - Endothecium, B -Connective tissue, C - Pollen grains
  • c) A - Pollen grains, B - Connective tissue, C – Endothecium
  • d) A - Endothecium, B - Pollen grains, C - Connective tissue
Q.6
ion 64 Match the following
a. False fruit Ground nut
b. Parthenocarpic fruit Barley
c. Albuminous seeds Black pepper;
d. Non albuminous seeds Banana
e. Perispermic seeds Strawberry
  • a) a=5 ;b=2 ;c=4 ;d=1 ;e=3
  • b) a=1 ;b=3 ;c=5 ;d=4 ;e=2
  • c) a=2 ;b=4 ;c=1 ;d=3 ;e=5
  • d) a=5 ;b=4 ;c=2 ;d=1 ;e=3
Q.7
ion 49 Which of the following is false? I. Endosperm formation starts prior to first division of zygote II. Angiospermic endosperm is mostly triploid (3n) while gymnospermic one is haploid (n). III. The most common type of endosperm is nuclear. IV. Coconut has both liquid nuclear (multinucleate) and cellular endosperm. V. Milky water of green tender coconut is liquid female gametophyte.
  • a) I and II only
  • b) III only
  • c) V only
  • d) II only
Q.8
ion 50 The first cell of suspensor towards Micropyle which absorbs food material is:
  • a) Hypophysis
  • b) Haustoria
  • c) Radicle
  • d) Transverse cell
Q.9
ion 51 What does the filiform apparatus do at the entrance into ovule?
  • a) It guides the pollen tube from a synergid into the egg
  • b) It helps in the entry of a pollen tube into the synergid
  • c) It prevents the entry of more than one pollen tube into the embryo sac
  • d) It brings about opening of pollen tube
Q.10
ion 52 Identify the function of perisperm:
  • a) Provide nutrients to the germination of seed
  • b) Provide nutrients to the development of pericarp
  • c) Absorption of water during germination of seed
  • d) Both B and C
Q.11
ion 53 A flower is specially formed for
  • a) decoration
  • b) photosynthesis
  • c) reproduction
  • d) fragrance
Q.12
ion 54 Which layer of the wall of microsporangium is made up of Fibrous layer
  • a) Middle layer
  • b) Endothecium
  • c) Tapetum
  • d) Epidermis
Q.13
ion 55 A : Megaspore mother cell undergoes mitosis to produce 4 megaspores R : Megaspore mother cell and the megaspores are both haploid
  • 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.14
ion 56 In angiosperms, meiosis takes place during the following phase of life cycle:
  • a) Sporogenesis
  • b) Gametogenesis
  • c) Fertilization
  • d) Germination of embryo
Q.15
ion 57 The largest cells in the male and female gametophyte of angiosperms are respectively:
  • a Central cell and vegetative cell)
  • b) Egg cell and generative cell
  • c) Vegetative cell and central cell
  • d) Generative cell and Central cell
Q.16
ion 58 Assertion: During microsporogenesis, there is the occurrence of mitosis and meiosis. Reason: During male gametogenesis, there is meiosis only.
  • 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.17
ion 59 Which of the following produce both cleistogamous and chasmogamous flowers?
  • a) Viola
  • b) Oxalis
  • c) Commelina
  • d) All of these
Q.18
ion 60 How many of the following statements are false: (i) Apomictic embryo are genetically similar to the parents. (ii) In angiosperms, both male and female gametes are non motile. (iii) Bamboo is a perennial monocarpic plant. (iv) Both rotifers and algae are producing offsprings without fertilization.
  • a) One
  • b) Two
  • c) Three
  • d) Four
Q.19
ion 61 Which of the following is wrong regarding tapetum?
  • a) It nourishes the developing microspores
  • b) It secretes callase enzyme for dissolving callose around the pollen tetrad
  • c) Its ubish body forms exine of microspores
  • d) None of the above
Q.20
ion 62 Which statement is true:
  • a) The formation of fruit without fertilization is called Parthenocarpy
  • b) The membranous coating of radicle in monocot seed is called Coleorhiza
  • c) The development of new individual plant without meiosis and gametic fusion is called apomixis
  • d) All of the above
Q.21
ion 63 Which among the following statements is false?
  • a) The cells of the tapetum possess dense cytoplasm and more than one nucleus
  • b) In gymnosperms, pteridophytes and angiosperms, the parental body is diploid and produced haploid gametes by meiosis
  • c) In haploid organisms, the meiocyte or gamete mother cell undergoes meiosis to form haploid gametes
  • d) Egg apparatus is situated in the embryo sac towards the micropylar end
Q.22
on 142 . Which among the following is not a reason for seed dormancy?
  • a) Impermeability of seed coat
  • b) Immaturity of embryo
  • c) Presence of germination inhibitors like Abscisic acid in certain parts of seeds
  • d) Lack of moisture content in the environment
Q.23
ion 66 Plants of which one of the following groups of genera are pollinated by the same agency?
  • a) Triticum, Cocos, Mangifera
  • b) Ficus, Kigelia, Casuarina
  • c) Salvia, Morus, Euphorbia
  • d) Bombax, Butea, Bauhinia
Q.24
ion 67 All of the following statements are correct except:
  • a) The proximal end of the filament is attached to the thalamus or the petal of the flower
  • b) The anther is a four-sided structure consisting of four microsporangia, two in each lobe
  • c) The number and length of stamens are variable in flowers of different species
  • d) In a longitudinal section, a typical microsporangium appears near circular in outline
Q.25
ion 68 For artificial hybridisation experiment in bisexual flower, which of the sequences is correct?
  • a) Bagging → Emasculation → Cross pollination → Rebagging
  • b) Emasculation → Bagging → Cross pollination → Rebagging
  • c) Cross pollination → Bagging → Emasculation → Rebagging
  • d) Self-pollination → Bagging → Emasculation → Rebagging
Q.26
ion 69 Diagram given below shows stages in embryogenesis in a typical dicot (Capsella). Identify structures A to D respectively
unit-6_ch-4_que_no-69_img_no1.png
  • a) Suspensor, Radicle, Plumule, Cotyledons
  • b) Hypophysis, Radicle, Plumule, Cotyledons
  • c) Suspensor, Plumule, Radicle, Cotyledons
  • d) Suspensor, Radicle, Plumule, Hypocotyls
Q.27
ion 70 Which of the following statements is false?
  • a) Some 2000 years old viable seeds of Phoenix dactylifera were discovered during archaeological excavation of King Herod's palace near Dead Sea
  • b) Record of 10,000 years of dormancy of seeds has been estimated in Lupinus arcticus
  • c) The number of seeds in each fruit in case of orchid and some parasitic forms like Orobanche and Striga is one
  • d) Many fruits have evolved mechanisms for dispersal of seeds
Q.28
ion 71 . Double fertilization was first discovered by Nawaschin (1898) in:
  • a) Lillium and Fritillaria
  • b) Mango and sugarcane
  • c) Papaya and Pea
  • d) Brassica and Candytuft
Q.29
ion 72 A dicotyledonous plant bears flowers but never produces fruits and seeds. The most probable reason for the above situation is:
  • a) Plant is dioecious and bears only pistillate flowers
  • b) Plant is dioecious and bears both staminate and pistillate flowers
  • c) Plant is monoecious and bears both staminate and pistillate flowers
  • d) Plant is dioecious and bears only staminate flowers
Q.30
ion 73 How many of the following statements are true: (i) Development of anther in a flower is eusporangiate. (ii) Tapetum contains more than one nucleus due to free nuclear mitosis. (iii) Meroblastic development occurs in embryogenesis. (iv) Isobilateral tetrads are present in monocots.
  • a) One
  • b) Two
  • c) Three
  • d) Four
Q.31
ion 74 Anthesis is a phenomenon which refers to:
  • a) Reception of pollen by stigma
  • b) Formation of pollen
  • c) Development of anther
  • d) Opening of flower bud
Q.32
ion 75 How many of the following statements are true: (i) Chalazosperm is nutritive. (ii) Aril is developed from funicle. (iii) Endothelium is the nutritive integument found in all angiosperms. (iv) Horse – shoes shaped embryo sac are found in amphitropous ovule.
  • a) One
  • b) Two
  • c) Three
  • d) Four
Q.33
ion 76 Embryo sac contains
  • a) 3 eggs
  • b) 2 eggs
  • c) 1 egg
  • d) 4 eggs
Q.34
ion 77 After fertilization seed is developed from
  • a) Embryo
  • b) Embryo sac
  • c) Ovule
  • d) Zygote
Q.35
ion 78 The innermost layer of the wall of microsporangium is called
  • a) Endothecium
  • b) Endodermis
  • c) Tapetum
  • d) Intine
Q.36
ion 79 Which one of the following is an example of free-nuclear endosperm
  • a) Coconut water
  • b) Castor
  • c) Sugarcane juice
  • d) Groundnut
Q.37
ion 80 A : In apomixis, the plants of new genetic sequence are produced R : In apomixis, two individuals of same genetic meet
  • 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.38
ion 81 In angiosperms, male gametes are formed from;
  • a) Vegetative cell by mitosis
  • b) Generative cell by mitosis
  • c) Vegetative cell by meiosis
  • d) Generative cell by meiosis
Q.39
ion 82 The maturation of Androecium and gynoecium in different times in a bisexual flower is:
  • a) Homogamy
  • b) Dichogamy
  • c) Herkogamy
  • d) Heterostyly
Q.40
on 143 The diameter of normal pollen grain is:
  • a) 25 – 50 micrometer
  • b) 60 – 80 micrometer
  • c) 10 – 15 micrometer
  • d) 4 – 6 micrometer
Q.41
on 252 Pollen tablets and syrups are nutritious and used by:
  • a) Horse of races and athletes
  • b) Pigs and buffalos
  • c) Athletes and monkeys
  • d) None of these
Q.42
ion 83 Assertion: In angiosperms, endosperm is formed before fertilization and is haploid. Reason: Perisperm and pericarp are the two layers formed inner to seed coat of angiosperms.
  • 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.43
ion 84 Asymmetric spindle is formed in:
  • a) Microspore
  • b) Megaspore
  • c) Microsporangium
  • d) Megasporangium
Q.44
ion 85 Find out the mismatching series: (i) Zostera – Submerged hydrophyte – Filiform pollen. (ii) Versatile anther – Grass – Anemophily. (iii) Viola – Common pansy – Unisexual flowers. (iv) Strawberry – Achene – False fruits.
  • a) Both (ii) and (iii)
  • b) Both (ii) and (iv)
  • c) Both (i) and (ii)
  • d) Only (iii)
Q.45
ion 86 Dioecious condition of a plant:
  • a) Allows geitonogamy and Xenogamy
  • b) Prevents Autogamy but facilitates geitonogamy
  • c) Increases inbreeding depression
  • d) Prevents both Autogamy and geitonogamy but allows Xenogamy
Q.46
ion 87 Pollen grains represent the male gametophyte; the former is surrounded by two layers; outer exine and inner intine. Exine is absent in some places of pollen grain of dicot plants. This place represents _________ and it performs _______. Fill in the blanks and choose the correct option:
  • a) Pollen kit, attract insects for pollination
  • b) Germ pore, initiation of pollen tube
  • c) Bicolpate germ pore, supply of nutrients to pollen tube
  • d) Monocolpate germ pore, maturation of pollen tube
Q.47
ion 88 Double fertilization means:
  • a) Fusion of male gamete with antipodal cell
  • b) Fusion of male gamete with synergids cell
  • c) Fusion of one male gamete with egg cell and another with antipodal cell
  • d) Fusion of one male gamete with egg cell and another with secondary nucleus
Q.48
ion 89 Study the statements and choose the correct option: (i) Tapetum nourish the developing pollen grains. (ii) Hilum represents the junction between ovule and funicle. (iii) In aquatic plants such as water hyacinth and water lily, pollination is by water. (iv) The primary endosperm nucleus is triploid.
  • a) (i) and (ii) are correct while (iii) and (iv) are wrong
  • b) (ii), (i) and (iv) are correct while (iii) is wrong
  • c) (i), (ii) and (iv) are correct while (iii) is wrong
  • d) All are correct
Q.49
ion 90 Match the following
a. Banana Typha
b. Sporopollenin Attracts pollen tube towards Micropyle of ovule
c. Filiform apparatus Present in fossilized pollen grains
d. Pollinium Parthenocarpic fruit
e. Compound pollen grains Calotropis
  • a) a=5 ;b=4 ;c=2 ;d=3 ;e=1
  • b) a=3 ;b=2 ;c=4 ;d=5 ;e=1
  • c) a=4 ;b=3 ;c=2 ;d=5 ;e=1
  • d) a=2 ;b=3 ;c=1 ;d=5 ;e=4
Q.50
ion 91 In flowering plants, a mature male gametophyte is derived from a pollen mother cell by:
  • a) Three mitotic divisions
  • b) One meiotic and two mitotic divisions
  • c) Two meiotic divisions
  • d) A single meiotic division
0 h : 0 m : 1 s