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Sexual Reproduction in Flowering Plants

125 questions · Biology · NEET
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Sexual Reproduction in Flowering Plants

125 questions · Biology · NEET

  1. Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : Both wind and water pollinated flowers are not very colourful and do not produce nectar. Reason (R) : The flowers…2025 · Q19 · MCQ
  2. Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : A typical unfertilised, angiosperm embryo sac at maturity is 8 nucleate and 7-celled. Reason (R) : The egg apparatus…2025 · Q4 · MCQ
  3. How many meiotic and mitotic divisions need to occur for the development of a mature female gametophyte from the megaspore mother cell in an angiosperm plant?2025 · Q49 · MCQ
  4. Given below are two statements : Statement I : Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it. Statement II : Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and…2025 · Q51 · MCQ
  5. Given below are two statements : One is labelled as Assertion (A) and other is labelled as Reason (R). Assertion (A) : Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus. Reason (R) : Presence of more…2025 · Q52 · MCQ
  6. Match List I with List II : Choose the option with all correct matches. Includes table2025 · Q76 · MCQ
  7. Identify the set of correct statements: A. The flowers of Vallisneria are colourful and produce nectar. B. The flowers of water lily are not pollinated by water. C. In most of water-pollinated species, the pollen grains are protected from…2024 · Q11 · MCQ
  8. Identify the correct description about the given figure : Includes diagram2024 · Q40 · MCQ
  9. Pollen grains remain preserved as fossils due to the presence of :2024 · Q12 · MCQ
  10. The part marked as ‘x’ in the given figure is Includes diagram2024 · Q37 · MCQ
  11. Which part of the ovule stores reserve food materials?2024 · Q8 · MCQ
  12. In which of the following sets of families, the pollen grains are viable for months?2023 · Q12 · MCQ
  13. Transfer of pollen grains from anther to stigma of another flower of same plant is known as :2023 · Q13 · MCQ
  14. In angiosperms the correct sequence of events in formation of female gametophyte in the ovule is : (A) 3 successive free nuclear divisions functional megaspore. (B) Degeneration of 3 megaspores. (C) Meiotic division in megaspore mother…2023 · Q33 · MCQ
  15. Large, colourful, fragrant flowers with nectar are seen in2023 · Q11 · MCQ
  16. In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :2023 · Q19 · MCQ
  17. What is the function of tassels in the corn cob?2023 · Q4 · MCQ
  18. Given below are two statements : One labelled as Assertion A and the other labelled as Reason R : Assertion A : In gymnosperms the pollen grains are released from the microsporangium and carried by air currents. Reason R : Air currents…2023 · Q40 · MCQ
  19. The residual persistent part which forms the perisperm in the seeds of beet is2022 · Q19 · MCQ
  20. To ensure that only the desired pollens fall on the stigma in artificial hybridization process (a) the female flower buds of plant producing unisexual flowers need not be bagged. (b) there is no need to emasculate unisexual flowers of…2022 · Q27 · MCQ
  21. In general the egg apparatus of embryo sac in angiosperm consists of2022 · Q32 · MCQ
  22. Given below are two statements: Statement I : Cleistogamous flowers are invariably autogamous Statement II : Cleistogamy is disadvantageous as there is no chance for cross pollination In the light of the above statements, choose the…2022 · Q19 · MCQ
  23. Identify the incorrect statement related to Pollination:2022 · Q25 · MCQ
  24. The term used for transfer of pollen grains from anthers of one plant to stigma of a different plant which, during pollination, brings genetically different types of pollen grains to stigma, is :2021 · Q2 · MCQ
  25. In some members of which of the following pairs of families, pollen grains retain their viability for months after release?2021 · Q34 · MCQ
  26. Diadelphous stamens are found in2021 · Q5 · MCQ
  27. A typical angiosperm embryo sac at maturity is :2021 · Q7 · MCQ
  28. The body of the ovule is fused within the funicle at2020 · Q38 · MCQ
  29. The plant parts which consist of two generations - one within the other (i) Pollen grains inside the anther (ii) Germinated pollen grain with two male gametes (iii) Seed inside the fruit (iv) Embryo sac inside the ovule2020 · Q39 · MCQ
  30. In some plants, the female gamete develops into embryo without fertilization. This phenomenon is known as :2019 · Q22 · MCQ
  31. Pinus seed cannot germinate and establish without fungal association. This is because :2019 · Q33 · MCQ
  32. Which one of the following statements regarding post-fertilization development in flowering plants is incorrect?2019 · Q34 · MCQ
  33. Placentation, in which ovules develop on the inner wall of the ovary or in peripheral part, is :2019 · Q35 · MCQ
  34. Persistent nucellus in the seed is known as2019 · Q36 · MCQ
  35. What is the fate of the male gametes discharged in the synergid?2019 · Q38 · MCQ
  36. Which of the following has proved helpful in preserving pollen as fossils?2018 · Q62 · MCQ
  37. Winged pollen grains are present in2018 · Q65 · MCQ
  38. Double fertilization is2018 · Q66 · MCQ
  39. Functional megaspore in an angiosperm develops into an2017 · Q17 · MCQ
  40. Flowers which have single ovule in the ovary and are packed into inflorescence are usualy pollinated by2017 · Q18 · MCQ
  41. A dioecious flowering plant prevents both2017 · Q19 · MCQ
  42. Attractants and rewards are required for2017 · Q20 · MCQ
  43. Double fertilisation is exhibited by2017 · Q33 · MCQ
  44. The coconut water from tender coconut represents2016 · Q16 · MCQ
  45. Which one of the following statements is not true?2016 · Q17 · MCQ
  46. Seed formation without fertilisation in flowering plants involves the process of2016 · Q18 · MCQ
  47. Proximal end of the filament of stamen is attached to the2016 · Q19 · MCQ
  48. Which of the following statements is not correct?2016 · Q20 · MCQ
  49. Pollination in water hyacinth and water lily is brought about by the agency of2016 · Q16 · MCQ
  50. In majority of angiosperms2016 · Q17 · MCQ
  51. The ovule of an angiosperm is technically equivalent to2016 · Q18 · MCQ
  52. In angiosperms, microsporogenesis and mega-sporogenesis2015 · Q14 · MCQ
  53. Filiform apparatus is characteristic feature of2015 · Q15 · MCQ
  54. Flowers are unisexual in2015 · Q23 · MCQ
  55. Coconut water from a tender coconut is2015 · Q52 · MCQ
  56. Which one of the following fruits is parthenocarpic?2015 · Q53 · MCQ
  57. Male gametophyte in angiosperms produces2015 · Q54 · MCQ
  58. Which one of the following may require pollinators, but is genetically similar to autogamy?2015 · Q15 · MCQ
  59. Which of the following are the important floral rewards to the animal pollinators ?2015 · Q16 · MCQ
  60. Which one of the following statements is not true?2015 · Q17 · MCQ
  61. Transmission tissue is characteristic feature of2015 · Q18 · MCQ
  62. The hilum is a scar on the2015 · Q49 · MCQ
  63. Which one of the following shows isogamy with non-flagellated gametes?2014 · Q29 · MCQ
  64. An aggregate fruit is one which develops from2014 · Q60 · MCQ
  65. Geitonogamy involves2014 · Q61 · MCQ
  66. Pollen tablets are available in the market for2014 · Q62 · MCQ
  67. Function of filiform apparatus is to2014 · Q63 · MCQ
  68. Non-albuminous seed is produced in2014 · Q64 · MCQ
  69. Which one of the following statements is correct?2013 · Q1 · MCQ
  70. Albuminous seeds store their reserve food mainly in2013 · Q10 · MCQ
  71. Which of the following statements is correct?2013 · Q11 · MCQ
  72. Megaspores are produced from the megaspore mother cells after2013 · Q12 · MCQ
  73. Animal vectors are required for pollination in2013 · Q9 · MCQ
  74. Meiosis takes place in2013 · Q1 · MCQ
  75. Seed coat is not thin, membranous in2013 · Q11 · MCQ
  76. Perisperm differs from endosperm in2013 · Q13 · MCQ
  77. Advantage of cleistogamy is2013 · Q14 · MCQ
  78. Megasporangium is equivalent to2013 · Q15 · MCQ
  79. Which one of the following statements is correct?2013 · Q16 · MCQ
  80. Product of sexual reproduction generally generates2013 · Q17 · MCQ
  81. Plants with ovaries having only one or a few ovules, are generally pollinated by2012 · Q7 · MCQ
  82. Which one of the following statements is wrong?2012 · Q8 · MCQ
  83. What is the function of germ pore?2012 · Q9 · MCQ
  84. Both, autogamy and geitonogamy are prevented in2012 · Q13 · MCQ
  85. An organic substance that can withstand environmental extremes and cannot be degraded by any enzyme is2012 · Q14 · MCQ
  86. Which one of the following is correctly matched?2012 · Q15 · MCQ
  87. Even in absence of pollinating agents seed-setting is assured in2012 · Q16 · MCQ
  88. What is common between vegetative reproduction and apomixts?2011 · Q10 · MCQ
  89. In angiosperms, functional megaspore develops into2011 · Q11 · MCQ
  90. Filiform apparatus is a characteristic feature of2011 · Q15 · MCQ
  91. Nucellar polyembryony is reported in species of2011 · Q16 · MCQ
  92. Which one of the following pollinations is autogamous?2011 · Q17 · MCQ
  93. The ''eyes'' of the potato tuber are2011 · Q18 · MCQ
  94. Wind pollination is common in2011 · Q19 · MCQ
  95. Examine the figures (A-D) given below and select the right option out of (a – d), in which all the four structures A, B, C and D are identified correctly. Includes diagram2010 · Q26 · MCQ
  96. Vegetative propagation in Pistia occurs by2010 · Q6 · MCQ
  97. Apomictic embryos in Citrus arise form2010 · Q16 · MCQ
  98. Wind pollinated flowers are2010 · Q17 · MCQ
  99. Transfer of pollen grains from the another to the stigma of another flower of the same plant is called2010 · Q18 · MCQ
  100. Vegetative propagation in mint occurs by2009 · Q17 · MCQ
  101. Which one of the following is resistant to enzyme action?2008 · Q16 · MCQ
  102. What does the filiform apparatus do at the entrance into ovule?2008 · Q17 · MCQ
  103. Which one of the following pairs of plant structures has haploid number of chromosomes ?2008 · Q18 · MCQ
  104. Unisexuality of flowers prevents2008 · Q19 · MCQ
  105. Two plants can be conclusively said to belong to the same species if they2007 · Q22 · MCQ
  106. Male gametes in angiosperms are formed by the division of2007 · Q52 · MCQ
  107. Which one of the following is surrounded by a callose wall?2007 · Q53 · MCQ
  108. The arrangement of the nuclei in a normal embryo sac in the dicot plants is2006 · Q21 · MCQ
  109. In a cereal grain the single cotyledon of embryo is represented by2006 · Q22 · MCQ
  110. Parthenocarpic tomato fruits can be produced by2006 · Q23 · MCQ
  111. In a type of apomixis known as advice embryony, embryos develop directly from the2005 · Q14 · MCQ
  112. Through which cell of the embryo sac, does the pollen tube enter the embryo sac?2005 · Q15 · MCQ
  113. Which one of the following represents an ovule, where the embryo sac becomes horse-shoe shaped and the funiculus and micropyle are close to each other?2005 · Q16 · MCQ
  114. Anthesis is a phenomenon which refers to2004 · Q16 · MCQ
  115. When a diploid female plant is crossed with a tetraploid male, the ploidy of endosperm cells in the resulting seed is2004 · Q17 · MCQ
  116. An ovule which becomes curved so that the nucellus and embryo sac lie at right angles to the funicle is2004 · Q18 · MCQ
  117. In a flowering plant, archesporium gives rise to2003 · Q20 · MCQ
  118. In angiosperms pollen tube liberate their male gametes into the2002 · Q17 · MCQ
  119. In angiosperm all the four microspores of tetrad are covered by a layer which is formed by2002 · Q18 · MCQ
  120. What is the direction of micropyle in anatropous ovule?2002 · Q19 · MCQ
  121. Anemophily type of pollination is found in2001 · Q15 · MCQ
  122. In grasses what happens in microspore mother cell for the formation of mature pollen grains?2001 · Q16 · MCQ
  123. Adventive embryony in Citrus is due to2001 · Q17 · MCQ
  124. Eight nucleated embryo sac is2000 · Q62 · MCQ
  125. Endosperm is formed during the double fertilization by2000 · Q63 · MCQ