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CHAPTER, , 1, , Reproduction in, Organisms, prACtiCe Questions, , Asexual Reproduction, 1. Clones are, (a) Morphologically similar, (c) Both (a) and (b), , (b) Genetically similar, (d) None of these, , 2. The approximate life span of a parrot is, (a) 60 years, (b) 1–2 weeks, , (c) 15 years, , (d) 140 years, , 3. The approximate life span of a crocodile is, (a) 60 years, (b) 15 years, , (c) 150 years, , (d) 140 years, , 4. Arrange the following in decreasing order of their life span., (1) Crocodile, (2) Dog, (3) Crow, (4) Parrot, (a) 1 > 2 > 3 > 4, (b) 2 > 3 > 4 > 1, (c) 4 > 1 > 2 > 3, (d) 4 > 1 > 3 > 2, 5. Life span of a tortoise is approximately, (a) 50–100 years, (c) 150–200 years, , (b) 100–150 years, (d) 200–250 years, , 6. The given diagram shows:, , (a) Budding in bacteria, (c) Budding in yeast, 7. Sexual reproduction is characterized by, (a) Two parent participation, (c) Fusion of gametes, , (b) Binary fission in amoeba, (d) Budding in sponge, (b) Formation of gametes, (d) All of these, , 8. Asexual reproduction is common among all except, (a) Unicellular organisms, (b) Plants with simple organization, (c) Animals with simple organization, (d) Animals with complex organization
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1.4, , Reproduction in Organisms, , 9. Name an organism where cell division is itself a mode of reproduction?, (a) Amoeba, (b) E. coli, (c) Euglena, (d) All of these, 10. The given diagram shows, (a) Budding in bacteria, (c) Budding in yeast, , (b) Binary fission in amoeba, (d) Budding in sponge, , 11. Cell division is synonymous with reproduction in, (a) Plants and fungi, (b) Animal and plant, (c) Protista and monera, (d) Monera and algae, 12. Binary fission is seen in, (a) Amoeba, (c) Vorticella, , (b) Paramecium, (d) All of these, , 13. Which of these organisms show budding?, (a) Yeast, (c) Sponge, , (b) Hydra, (d) All of these, , 14. Find the false statement., (A) In yeast unequal division leads to bud formation., (B) When offspring is produced by a single parent with or without the involvement of gamete, formation, the reproduction is asexual., (C) Size of crows and parrots are not very different yet their life span shows a wide difference., (D) In binary fission cell divides in unequal parts., (a) Only B and D, (b) Only C, (c) Only D, (d) Only A and B, 15. The approximate life span of the organism shown in the given diagram is, , (a) 5 years, (c) 25 years, , (b) 15 years, (d) 50 years
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Reproduction in Organisms1.5, , 16. Match column-I (Organism) with column-II (reproductive structure)., Column-I, (A) Penicillium, (B) Hydra, (C) Sponge, (D) Paramecium, , Column-II, (1) Conidia, (2) Exogenous bud, (3) Gemmules (Endogenous buds), (4) Binary fission, , (a) A : 1, B : 2, C : 3, D : 4, (c) A : 1, B : 3, C : 4, D : 2, , (b) A : 4, B : 1, C : 3, D : 2, (d) A : 2, B : 1, C : 4, D : 3, , 17. Select the incorrect statement., (a) Members of the Kingdom fungi and simple plants such as algae reproduce through special, asexual reproductive structures., (b) Zoospores are generally microscopic motile structures., (c) Zoospores are usually macroscopic motile structures., (d) Clones are morphologically and genetically similar individuals., 18. What are the units of vegetative propagation in plants?, (a) Runners and rhizomes, (b) Suckers and bulbs, (c) Tuber and offset, (d) All of these, 19. In plants, the units of vegetative propagation are capable of giving rise to new offspring. These, structures are called, (a) Zoospores, (b) Asexual spores, (c) Vegetative propagules, (d) Rhizomes, 20. Match Column-I (Structure) with Column-II (Name of structure and its parent plant)., Column-I, A., , Column-II, 1. Bulbil of Agave, , B., , 2. Leaf buds of Bryophyllum, , C., , 3. Offset of water hyacinth (Terror of Bengal), , (a) A:2, B:1, C:3, (c) A:3, B:2, C:1, , (b) A:1. B:2, C:3, (d) A:2, B:3, C:1
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1.6, , Reproduction in Organisms, , 21. Which is the incorrect statement about water hyacinth?, (a) Introduced in India for their lovely flowers and shape of leaves., (b) It is world’s most problematic terrestrial weed., (c) It reproduce asexually through offsets, (d) Its botanical name is Eicchornia crassipes., 22. Vegetative propagules of Agave is, (a) Tuber, (c) Bulbil, , (b) Rhizome, (d) Runner, , 23. Vegetative propagules of Solanum tuberosum is, (a) Tuber, (b) Rhizome, (c) Bulbil, (d) Offset, 24. Select the odd one out., (a) Tuber, (c) Bulbil, , (b) Rhizome, (d) Zoospores, , 25. Rhizomes are vegetative propagules of, (a) Apple, (c) Mango, , (b) Banana, (d) Grapes, , 26. Which of these points is false about the diagram?, , (a) Belongs to class mammalia, (b) Life span is approximately 40 years, (c) Belongs to genus Elephas, (d) Crepuscular animal, 27. Choose the correct statement., (A) Asexual reproduction method is the common method of reproduction in organisms with, relatively simple organization like algae and fungi., (B) Organism with relatively simple organization like algae and fungi shifted to sexual mode, of reproduction just before the onset of adverse conditions., (C) Vegetative as well as sexual mode of reproduction is exhibited by the higher plants, (D) Only sexual mode of reproduction is present in most of the animals., (a) A and B only, (c) C and D only, , (b) B and C only, (d) All A, B, C and D, , 28. Sexual reproduction when compared to asexual reproduction is a, (A) Slow process, (B) Fast process, (C) Simple process, (D) Complex process, (a) A and D only, (c) B and D only, , (b) A and C only, (d) B and C only
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Reproduction in Organisms1.7, 29. Plants, animals or fungi differ in all of these aspects except, (a) External morphology, (b) Internal structure, (c) Physiology, (d) Pattern of sexual mode of reproduction, 30. Which of these plants do not show clear cut vegetative, reproductive and senescent phase?, (a) Annual plant, (b) Biennial plant, (c) Perennial plant, (d) All of these, 31. Which information is false about the organism shown in the diagram?, , (a) Reproduce by basidiospores, (c) It is the conidia of penicillium, , (b) It is a multicellular fungus, (d) Belongs to ascomycetes, , 32. Which of the following flowers only once in their lifetime?, (a) Mango, (b) Neem, (c) Bamboo, (d) All of these, 33. Which of the following plant flowers once in 12 years?, (a) Mangifera indica, (b) Strobilanthus kunthiana (Neelakuranji), (c) Helianthus annus, (d) Papver somniferum, 34. Which of these statement is true about Strobilanthus kunthiana?, (a) This plant flowers during September to October 2006., (b) Its mass flowering transformed large tracks of hilly areas in Kerala, Karnataka and Tamil, Nadu into blue stretches., (c) It flowers once in 12 years., (d) All the above, 35. In animals, the juvenile phase is followed by what changes prior to active reproductive, behaviour?, (a) Morphological changes, (b) Physiological changes, (c) Genetical changes, (d) Both (a) and (b), 36. Which of the following mammals show menstrual cycle?, (a) Monkeys, (b) Apes, (c) Humans, (d) All of these
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1.8, , Reproduction in Organisms, , 37. The diagram shows:, , (a) Zoospores of hydra, (c) Gemmules in sponge, 38. Oestrous cycle occurs in, (a) Cows, (c) Deer, , (b) Conidia of Penicillium, (d) Zoospores of chlamydomonas, (b) Rats, (d) All of these, , 39. Find the correct statement., (a) ‘Reproductive phase’ is of same duration in all organisms., (b) Birds in captivity can be made to lay eggs throughout the year., (c) Female of non-primates shows cyclical changes during reproductive phase which is, known as menstrual cycle., (d) Perennial plants show clear cut vegetative, reproductive and senescent phase., 40. Most wild mammals are, (a) Continuous breeder, (b) Seasonal breeder, (c) Continuous for half year, seasonal for next half year, (d) None of these, 41. Which of these statements is false about the diagram?, , (a), (b), (c), (d), , It represents the asexual reproductive structure of hydra., It contains archaeocyte cells., It represents asexual reproductive structure of sponges., It shows gemmules in sponges.
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Reproduction in Organisms1.9, , 42. ‘Humans’ are, (a) Seasonal breeder, (c) Both (a) and (b), , (b) Continuous breeder, (d) None of these, , 43. Which of the following can be considered as one of the parameter of senescence or old age?, (a) End of juvenile or vegetative phase, (b) End of reproductive phase, (c) Hormonal imbalance, (d) Slowing of metabolism due to disease, Sexual Reproduction, 44. Pre-fertilization events among these are, (a) Syngamy, (c) Formation of zygote, , (b) Gametogenesis and gamete transfer, (d) Embryogenesis, , 45. Gametes are generally, (a) Haploid, (c) Diploid, , (b) Triploid, (d) Hexaploid, , 46. The diagram shows, , (a) Homogametes of cladophora, (c) Hetrogametes of cladophora, 47. Which of the following is/are male gametes?, (a) Egg, (c) Antherozoids, , (b) Heterogametes of fucus, (d) Heterogametes of fungus, (b) Ovum, (d) Zygote, , 48. Count the total number of organisms which are monoecious., Cucurbits, Coconut, Papaya, Date palm, Chara, Marchantia, (a) 1, (b) 2, (c) 3, 49. Archegoniophore is present in, (a) Chara, (c) Marchantia, , (d) 4, , (b) Papaya, (d) Fucus, , 50. Select the incorrect statement., (a) Unisexual male flower is staminate., (b) Unisexual female flower is pistillate., (c) Heterothallic and dioecious are terms used to describe unisexual condition., (d) Cockroach is a hermaphrodite., 51. Select the example/s of hermaphrodite organism/s among these., (a) Earthworm, (b) Tapeworm, (c) Leech, (d) All of these
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1.10, , Reproduction in Organisms, , 52. Identify A, B and C in the diagram., B, A, , C, , (a), (b), (c), (d), , A: Nodes, B: Buds, C: Adventitious root, A: Buds, B: Nodes, C: Tap root, A: Adventitious root, B: Nodes, C: Buds, A: Tap root, B: Nodes, C: Buds, , 53. Monoecious plants means, (A) Only male flowers are present in the plant., (B) Only female flowers are present in the plant., (C) Bisexual flowers are present in the plants., (D) Separate male and female flowers are present in the same plant., (a) Only A, (b) Only D, (c) Only C, (d) C and D both, 54. Which of these organisms has/have haploid parental body?, (a) Monera and fungi, (b) Algae, (c) Bryophytes, (d) All of these, 55. Which of these organisms has/have diploid parental body?, (a) Pteridophyte and gymnosperm, (b) Angiosperm, (c) Most of the animals, (d) All of these, 56. Antheridiophore is present in, (a) Chara, (c) Marchantia, , (b) Fucus, (d) Sweet potato, , 57. The diagram shows, , (a) Homogametes of cladophora, (c) Hetrogametes of cladophora, , (b) Homogametes of fucus, (d) Heterogametes of fungus
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Reproduction in Organisms1.11, , 58. Find out the total number of organism whose gametes contain odd number of chromosomes., , Rat, Housefly, Dog, Cat, Apple, Rice, Maize, Potato, Onion, (a) 3, , (b) 4, , (c) 5, , (d) 6, , 59. Meiocyte of which organism contains maximum number of chromosomes?, (a) Fruit fly, (b) Butterfly, (c) Ophioglossum (a fern), (d) Human, 60. Meiocyte of cat contains how many chromosomes?, (a) 8, (b) 12, (c) 42, , (d) 38, , 61. Identify the plant part given in the below diagram it belongs to which plant given in the, options., , Branches, Axis, , (a), , (b), , Dwarf shoot, Long shoot, , (c), , Seeds, (d), , 62. Water is a medium for gamete transfer in, (a) Bryophytes, (c) Algae, , (b) Pteridophyte, (d) All of these
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1.12, , Reproduction in Organisms, , 63. Which of these are carriers of male gamete in seed plants?, (a) Microspore mother cell, (b) Megaspore mother cell, (c) Anther, (d) Pollen grains, 64. Transfer of pollen grains from anther to stigma is known as, (a) Emasculation, (b) Pollination, (c) Bagging, (d) Fertilization, 65. The most critical event in sexual reproduction is, (a) Gametogenesis, (b) Gamete transfer, (c) Fertilization (Syngamy), (d) Embryogenesis, 66. Match column-I (Organism) with column-II (Chromosome number in meiocyte)., Column-I, (A) Housefly, (B) Apple, (C) Rice, (D) Rat, (E) Onion, , Column-II, (1) 12, (2) 34, (3) 24, (4) 42, (5) 32, , (a) A:1, B:2, C:3, D:4, E:5, (c) A:5, B:4, C:3, D:2, E:1, , (b) A:2, B:3, C:1, D:4, E:5, (d) A:3, B:2, C:1, D:4, E:5, , 67. Select the incorrect statement from the following., (a) Few fungi and algae have motile male and motile female gametes., (b) Most vital event of sexual reproduction is the fusion of gametes., (c) Pea is a bisexual self-fertilizing plant., (d) In majority of organisms male gamete is non-motile and female gamete is motile., 68. Parthenogenesis is shown by, (a) Rotifers, (c) Some lizards and birds (turkey), , (b) Honey bees, (d) All of these, , 69. Which of these statements is false about the diagram?, , (a), (b), (c), (d), , It belongs to the family solanaceae., It is a modified root meant for storage., It is a modified stem meant for reproduction., Eyes of the above structure are axillary buds., , 70. External fertilization is seen in all of these except, (a) Algae, (b) Amphibians, (c) Fishes, , (d) Mammals
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Reproduction in Organisms1.13, , 71. Find the incorrect statement., (a) Large number of gametes are released in surrounding water in external fertilization., (b) Offspring produced by external fertilization are extremely vulnerable to predators., (c) External fertilization is shown by bony fishes and frogs., (d) In seed plant, the motile male gametes are carried to female gamete by pollen tubes., 72. Internal fertilization is seen in, (a) Reptiles, (c) Mammals, , (b) Birds, (d) All of these, , 73. Internal fertilization is seen in, (a) Bryophytes, (c) Gymnosperm and angiosperm, , (b) Pteridophytes, (d) All of these, , 74. Which of these characteristics belong to organisms showing internal fertilization?, (a) Eggs are formed inside the female body where they fuse with male gamete., (b) Male gametes are motile., (c) Number of eggs produced is less in number, (d) All of the above, 75. Development of embryo from zygote is, (a) Parthenogenesis, (c) Blastulation, , (b) Embryogenesis, (d) Gastrulation, , 76. Life in all organism starts from, (a) Single cell zygote, (c) Single cell embryo, , (b) Two celled zygote, (d) Multicellular embryo, , 77. Select the total number of true statements., (A) In organisms belonging to fungi and algae, the zygote develops a thick wall that is resistant, to dessication and damage., (B) Formation of diploid zygote is universal in all sexually reproducing organisms., (C) Syngamy occurs inside the body of the organism in internal fertilization., (D) In organism with haplontic life cycle, the zygote divides by meiosis to form haploid, spores that grow into haploid individuals., (a) 1, (b) 2, (c) 2, (d) 4, 78. The following are oviparous except, (a) Crocodile, (c) Parrot, , (b) Crow, (d) Horse, , 79. In oviparous animals like birds and reptiles the fertilized egg is covered by shell made up of, ________., (b) Na2CO3, (c) CaCO3, (d) MgCO3, (a) SiO2, 80. The chances of survival of the young one is greater in, (a) Internal fertilization, (b) External fertilization, (c) Oviparous animals, (d) Viviparous animals, 81. After fertilization which part of flower generally withers and falls off?, (a) Sepals, (b) Petals, (c) Stamens, (d) All of these
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1.14, , Reproduction in Organisms, , 82. Select the false statement., (a) Ovule develops into seed, (c) Zygote develops into embryo, , (b) Ovary develops into fruit, (d) Placenta develops into pericarp, , 83. A, B, C and D shows which type of placentation respectively?, , S, P, , S, (A), , (B), , P, , S, P, , (C), , (a), (b), (c), (d), , S, P, , (D), , A: Marginal, B: Free central, C: Perietal, D: Axile, A: Perietal, B: Marginal, C: Axile, D: Free central, A: Axile, B: Free central, C: Marginal, D: Perietal, A: Axile, B: Perietal, C: Free central, D: Marginal, , 84. Gametes in haploid organisms are produced by, (a) Amitosis, (b) Mitosis, (c) Meiosis, (d) Cleavage, 85. Embryonal protection and care are better in, (a) Oviparity, (c) Viviparity, , (b) Parthenogenesis, (d) Polyembryony, , 86. After fertilization in angiosperms, ovules develop into, (a) Pericarp, (b) Fruit, (c) Seed, 87. ‘A’ in the diagram shows:, , A, , (d) Embryo
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Reproduction in Organisms1.15, , (a) Testis of a male cockroach, (c) Testis of an earthworm, , (b) Ovary of a female cockroach, (d) Ovary of an earthworm, , 88. The progenitor of the next generation inside the mature seed is known as, (a) Micropyle, (b) Pericarp, (c) Embryo, (d) Zygote, 89. Identify the ploidy of the following parts of flowering plants., Ovary, Anther, Egg, Pollen, Male gamete and Zygote, (a) 2n, 2n, n, n, n, 2n, (b) 2n, 3n, n, n, 2n, 2n, (c) 2n, n, n, n, n, 2n, (d) 2n, 2n, n, 2n, n, 2n, 90. Select the correct statement from the following., (A) In flowering plants, the zygote is formed inside the ovule., (B) In reptiles and birds, the fertilized eggs covered by hard calcareous shell (Cleidoic) are, laid in a safe place in environment., (C) In organisms belonging to fungi and algae, the zygote develops a thick wall that is, vulnerable to dessication and damage., (D) During embryogenesis, zygote undergoes cell division and cell differentiation., (a) A and C only, (b) A, B and C only, (c) C and D only, (d) A, B and D only, 91. Which of these statements is true about Chara?, (a) Oogonium and antheridium are present on different plants., (b) Oogonium is placed in the upper part and antheridium in the lower part., (c) Oogonium is placed in the lower part and antheridium in the upper part., (d) Chara belongs to angiosperm., 92. Identify A and B in this diagram., , A, , B, , (a) A: Anther, B: Sepals, (c) A: Stamen, B: Carpel, , (b) A: Petals, B: Anther, (d) A: Pistil, B: Stamen, , 93. Find the chromosome numbers in gamete (n) of the following organisms respectively., Human, Housefly, Rat, Dog, Cat, Fruitfly, Apple, Rice, Maize, Potato, Butterfly, Onion, (a) 23, 12, 12, 39, 19, 6, 17, 12, 10, 24, 190, 16, (b) 23, 12, 21, 39, 19, 6, 17, 12, 20 24, 190, 16, (c) 23, 6, 21, 39, 19, 4, 17, 12, 10, 24, 190, 16, (d) 23, 6, 12, 39, 19, 4, 17, 21, 10, 24, 190, 16
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1.16, , Reproduction in Organisms, , 94. Identify A, B and C in the diagram., , (A), , , , (B), , (C), , , , (a) A: Heterogametes of chlamydomonas, B: Homogametes of fucus, C: Hetrogametes of homo sapiens, (b) A: Homogametes of chara, B: Heterogametes of fucus, C: Heterogamete of homo sapiens, (c) A: Homogamete of cladophora (a bryophyte), B: Heterogamete of fucus (an alga), C: Heterogamete of homo sapiens, (d) A: Isogametes of cladophora (an alga), B: Heterogametes of fucus (an alga), C:Heterogametes of homo sapiens, 95. Adventitious buds arise from the notches present at margins of leaves in, (a) Potato, (b) Offset, (c) Bryophyllum, (d) Turmeric, 96. Most common type of reproduction in animals?, (a) Asexual, (b) Vegetative, (c) Sexual, (d) Gemmules formation, 97. What is the number of non-primate mammals in this series?, , , Cow, Sheep, Rat, Deer, Dog, Tiger, Monkey, Human and Ape, (a) 3, , (b) 4, , (c) 6, , 98. Rhizomes are present in, (a) Banana, (c) Potato, , (d) 7, , (b) Ginger, (d) Both (a) and (b), , 99. Identify A, B and C in the figure., Conida, , (A), , Mouth, , Bud, , , , (B), , , , (C)
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Reproduction in Organisms1.17, , (a), (b), (c), (d), , A: Zoospores of chlamydomonas, B: Conidia of penicillium, C: Buds in hydra, A: Zoospores of chlamydomonas, B: Conidia of yeast, C: Buds in hydra, A: Conidia of penicillium, B: Zoospores of chlamydomonas, C: Buds in hydra, A: Zoospores of chlamydomonas, B: Ascospores of penicillium, C: Buds in hydra, , 100. Bulbils are vegetative propagules in, (a) Water hyacinth, (c) Potato, , (b) Agave, (d) Tomato, , Assertion and Reason Questions, Read the assertion and reason carefully to mark the correct option out of the options given, below:, (a) If both the assertion and the reason are true and the reason is a correct explanation of the, assertion., (b) If both the assertion and reason are true but the reason is not a correct explanation of the, assertion., (c) If the assertion is true but the reason is false., (d) If both the assertion and reason are false., 101. Assertion: Asexual as well as sexual modes of reproduction are exhibited by the higher plants., , Reason: Only sexual mode of reproduction is present in most of the animals., 102. Assertion: In sexual reproduction the offsprings are not identical to parents or amongst, themselves., , Reason: Sexual reproduction involves fusion of male and female gametes., 103. Assertion: Humans are called continuous breeders., , Reason: Humans are reproductively active throughout., 104. Assertion: Zygote is the vital link that ensures continuity of species between organisms., Reason: Most vital events of sexual reproduction is the fusion of gametes., 105. Assertion: In flowering plant after fertilization, ovary develops into seeds., , Reason: Ovules mature into fruits., 106. Assertion: In angiosperms the ovule develops into a seed after fertilization., Reason: Fertilization is not essential for the formation of fruit., 107. Assertion: Sexual reproduction is a simple and fast process., , Reason: Asexual reproduction is a complex and slow process, 108. Assertion: Organisms exhibiting external fertilization releases large number of gametes in to, the surrounding medium., Reason: It will enhance the chance of syngamy., 109. Assertion: The chance of survival of young ones is greater in viviparous organism., , Reason: Proper embryonic care and protection is available inside the body of female organism., 110. Assertion: All members of bee are diploid except the queen., , Reason: Queen is produced parthenogenetically., 111. Assertion: Over growth of water hyacinth leads to death of fishes in aquatic body., Reason: Water hyacinth drains oxygen from water.
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1.18, , Reproduction in Organisms, , 112. Assertion: Birds in captivity can be made to lay eggs through the year (poultry farm), Reason: Birds lay eggs seasonally., 113. Assertion: Period of growth before attaining sexual maturity is called Juvenile phase equal., Reason: Duration of juvenile phase in all organisms is same., 114. Assertion: Vegetative propagation is asexual process., Reason: Vegetative propagation doesn’t involve two parents., 115. Assertion: Bamboo plant shows gregarious flowering., Reason: Bamboo plant flower once in their life time., 116. Assertion: In seed plants the fertilization is external., Reason: In seed plant male gamete is motile., 117. Assertion: Budding and gamete formation are the common asexual methods seen in animals., Reason: Asexual method does not involve the formation and fusion of gametes., 118. Assertion: Animals are always viviparous., Reason: Plants are always oviparous., 119. Assertion: Plants are defined as monoecious and dioecious, Reason: Flowers may be bisexual and unisexual., , previous year questions, 1. Which one of the following is monoecious?, , (a) Marchantia, (c) Pinus, , [AIPMT MAINS 2010], (b) Cycas, (d) Date palm, , 2. Examine the figures (A to D) given below and select the right option out (a to d), in which all, the four structures A, B, C and D are identified correctly., , [AIPMT MAINS 2010], B, , A, , , C
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Reproduction in Organisms1.19, , (a), (b), (c), (d), , A: Rhizome, B: Sporangiophore, C: Polar cell, D: Globule, A: Runner, B: Archegoniophore, C: Synergid, D: Antheridium, A: Offset, B: Antheridiophore, C: Antipodals, D: Oogonium, A: Sucker, B: Seta, C: Megaspore mother cell, D: Gemma cup, , 3. Vegetative propagation in Pistia occurs by, , (a) Stolon, (c) Runner, , [AIPMT MAINS 2010], (b) Offset, (d) Sucker, , 4. Which one of the following pairs is wrongly matched while the remaining three are correct?, , [AIPMT MAINS 2011], (a) Penicillium, - Conidia, (b) Water hyacinth, - Runner, (c) Bryophyllum, - Leaf buds, (d) Agave, - Bulbils, 5. Which one of the following is correctly matched?, , [AIPMT PRE 2012], (a) Onion – Bulb , (b) Ginger – Sucker, (c) Chlamydomonas – Conidia, (d) Yeast – Zoospores, 6. The product of sexual reproduction generally generates, , (a) Longer viability of seeds, (b) Prolonged dormancy, (c) New genetic combination leading to variation, (d) Large biomass, 7. Meiosis takes place in, , (a) Meiocyte, (b) Conidia, (c) Gemmule, (d) Megaspore, 8. Monoecious plant of chara shows the occurrence of, , (a) Antheridiophore and archegoniophore on the same plant., (b) Stamen and carpel on the same plant., (c) Upper antheridium and lower oogonium on the same plant., (d) Upper oogonium and lower antheridium on the same plant., 9. Which one of the following is wrong about chara?, , (a) Upper oogonium and lower round antheridium, (b) Globule and nucule present on the sap plant, (c) Upper antheridium and lower oogonium, (d) Globule is a male reproductive structure, , [AIPMT 2013], , [AIPMT 2013], , [AIPMT 2013], , [AIPMT 2014]
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1.20, , Reproduction in Organisms, , 10. In ginger, vegetative propagation occurs through, , (a) Rhizome, (b) Offsets, (c) Bulbils, (d) Runners, 11. Which of the following pairs is not correctly matched?, , Mode of reproduction, Example, (a) Rhizome, Banana, (b) Binary fission, Sargassum, (c) Conidia, Penicillium, (d) Offset, Water hyacinth, 12. Roots play insignificant role in absorption of water in:, , (a) Pistia, (b) Pea, (c) Wheat, (d) Sunflower, 13. In bryophytes and pteridophytes, transport of male gametes requires:, (a) Wind, (b) Insects, (c) Birds, (d) Water, , [AIPMT 2015], , [RE-AIPMT 2015], , [RE-AIPMT 2015], , [NEET - I, 2016], , 14. Which one of the following statements is not correct?, [NEET - II, 2016], (a) Microscopic, motile asexual reproductive structures are called zoospores., (b) In potato, banana and ginger, the plantlets arise from the internodes present in then, modified stem, (c) Water hyacinth, growing in the standing water, drains oxygen from water that leads to the, death of fishes., (d) Offspring produced by the asexual reproduction are called clone, , NCERT Exemplar Questions, 1. A few statements describing certain features of reproduction are given below. Select the, options that are true for both sexual and asexual reproduction from the options given:, i. Gametic fusion takes place., ii. Transfer of genetic material takes place., iii. Reduction division takes place., iv. Progeny have some resemblance with parents., (a) i and ii, (b) ii and iii, (c) ii and iv, (d) i and iii, 2. The term ‘clone’ cannot be applied to an offspring formed by sexual reproduction because, (a) Offspring do not possess exact copies of parental DNA., (b) DNA of only one parent is copied and passed on to the offspring., (c) Offspring are formed at different times., (d) DNA of parent and offspring are completely different., 3. Amoeba and Yeast reproduce asexually by fission and budding respectively, because they are, (a) Microscopic organisms, (b) Heterotrophic organism, (c) Unicellular organisms, (d) Uninucleate organisms
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Reproduction in Organisms1.21, , 4. A few statements with regard to sexual reproduction are given below, i. Sexual reproduction does not always require two individuals., ii. Sexual reproduction generally involves gametic fusion., iii. Meiosis never occurs during sexual reproduction., iv. External fertilization is a rule during sexual reproduction., Choose the correct statements from the options below:, (a) i and iv, (b) i and ii, (c) ii and iii, , (d) i and iv, , 5. A multicellular, filamenteous alga exhibits a type of sexual life cycle in which the meiotic, division occurs after the formation of zygote. The adult filament of this alga has, (a) Haploid vegetative cells and diploid gametangia., (b) Diploid vegetative cells and diploid gametangia., (c) Diploid vegetative cells and haploid gametangia., (d) Haploid vegetative cells and haploid gametangia., 6. The male gametes of rice plant have 12 chromosomes in their nucleus. The chromosome, number in the female gamete, zygote and the cells of the seedling will be, respectively, (a) 12, 24, 12, (b) 24, 12, 12, (c) 12, 24, 24, (d) 24, 12, 24, 7. Given below are a few statements related to external fertilization. Choose the correct, statements., i. The male and female gametes are formed and released simultaneously., ii. Only a few gametes are released into the medium., iii. Water is the medium in a majority of organisms exhibiting external fertilization., iv. Offspring formed as a result of external fertilization have better chance of survival than, those formed inside an organism., (a) iii and iv, (b) i and iii, (c) ii and iv, (d) i and iv, 8. The statements given below describe certain features that are observed in the pistil of flowers., Choose the statements that are true from the options below:, i. Pistil may have many carpels., ii. Each carpel may have more than one ovule., iii. Each carpel has only one ovule., iv. Pistil has only one carpel., (a) i and ii, (b) i and iii, (c) ii and iv, (d) iii and iv, 9. Which of the following situations correctly describe the similarity between an angiosperm egg, and a human egg?, i. Eggs of both are formed only once in a lifetime. Choose the statements that are true from, the options below:, ii. Both the angiosperm egg and human egg are stationary., iii. Both the angiosperm egg and human egg are motile transported., iv. Syngamy in both results in the formation of zygote., (a) ii and iv, (b) iv only, (c) iii and iv, (d) i and iv, 10. Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is, mainly because, (a) Nodes are shorter than internodes, (b) Nodes have meristematic cells
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1.22, , Reproduction in Organisms, , (c) Nodes are located near the soil, (d) Nodes have non-photosynthetic cells, 11. Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution?, i. Lower groups of organisms have simpler body design., ii. Asexual reproduction is common in lower groups., iii. Asexual reproduction is common in higher groups of organisms., iv. The high incidence of sexual reproduction in angiosperms and vertebrates., Choose the correct answer from the options given below:, (a) i, ii and iii, (b) i, iii and iv, (c) i, ii and iv, (d) ii, iii and iv, 12. Offspring formed by sexual reproduction exhibit more variation than those formed by asexual, reproduction because, (a) Sexual reproduction is a lengthy process., (b) Gametes of parents have qualitatively different genetic composition., (c) Genetic material comes from parents of two different genetic compositions., (d) Greater amount of DNA is involved in sexual reproduction., 13. Choose the correct statement from amongst the following:, (a) Dioecious (hermaphrodite) organisms are seen only in animals., (b) Dioecious organisms are seen only in plants., (c) Dioecious organisms are seen in both plants and animals., (d) Dioecious organisms are seen only in vertebrates., 14. There is no natural death in single celled organisms like Amoeba and bacteria because, (a) They cannot reproduce sexually., (b) They reproduce by binary fission., (c) Parental body is distributed among the offspring., (d) They are microscopic., 15. There are various types of reproduction. The type of reproduction adopted by an organism, depends on, (a) The habitat and morphology of the organism., (b) Morphology of the organism., (c) Morphology and physiology of the organism., (d) The organism’s habitat, physiology and genetic makeup., 16. Identify the incorrect statement., (a) In asexual reproduction, the offspring produced are morphologically and genetically, identical to the parent., (b) Zoospores are sexual reproductive structures., (c) In asexual reproduction, a single parent produces offspring with or without the formation, of gametes., (d) Conidia are asexual structures in structures., 17. Which of the following is a post-fertilization event in flowering plants?, (a) Transfer of pollen grains, (b) Embryo development, (c) Formation of flower, (d) Formation of pollen grains, 18. The number of chromosomes in the shoot tip cells of a maize plant is 20. The number of, chromosomes in the microspore mother cells of the same plant shall be, (a) 20, (b) 10, (c) 40, (d) 15
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Reproduction in Organisms1.23, , Answer Keys, Practice Questions, , 1. (c), 11. (c), 21. (b), 31. (a), 41. (a), 51. (d), , 2. (d), 12. (d), 22. (c), 32. (c), 42. (b), 52. (a), , 3. (a), 13. (d), 23. (a), 33. (b), 43. (b), 53. (d), , 4. (c), 14. (c), 24. (d), 34. (d), 44. (b), 54. (d), , 5. (b), 15. (b), 25. (b), 35. (d), 45. (a), 55. (d), , 6. (c), 16. (a), 26. (b), 36. (d), 46. (b), 56. (c), , 7. (d), 17. (c), 27. (d), 37. (d), 47. (c), 57. (a), , 8. (d), 18. (d), 28. (a), 38. (d), 48. (c), 58. (b), , 9. (d), 19. (c), 29. (d), 39. (b), 49. (c), 59. (c), , 10. (b), 20. (b), 30. (c), 40. (b), 50. (d), 60. (d), , 61. (a), 71. (d), 81. (d), 91. (b), , 62. (d), 72. (d), 82. (d), 92. (c), , 63. (d), 73. (d), 83. (a), 93. (c), , 64. (b), 74. (d), 84. (b), 94. (d), , 65. (c), 75. (b), 85. (c), 95. (c), , 66. (a), 76. (a), 86. (c), 96. (c), , 67. (d), 77. (d), 87. (a), 97. (c), , 68. (d), 78. (d), 88. (c), 98. (d), , 69. (b) 70. (d), 79. (c) 80. (d), 89. (a) 90. (d), 99. (a) 100. (b), , Assertion and Reason Questions, 101. (b) 102. (a) 103. (a) 104. (b) 105. (d) 106. (c) 107. (d) 108. (a) 109. (a) 110. (d), 111. (a) 112. (b) 113. (c) 114. (a) 115. (a) 116. (d) 117. (b) 118. (d) 119. (d), Previous Year Questions, 1. (c), 11. (b), , 2. (c), 12. (a), , 3. (b), 13. (d), , 4. (b), 14. (b), , 5. (a), , 6. (c), , 7. (a), , 8. (d), , 9. (c), , 10. (a), , 8. (a), 18. (a), , 9. (b), , 10. (b), , NCERT Exemplar Questions, 1. (c), 11. (c), , 2. (a), 12. (b), , 3. (c), 13. (c), , 4. (b), 14. (c), , 5. (d), 15. (d), , 6. (c), 16. (b), , 7. (b), 17. (b)
