Class-12 Biology Ch-2 Sexual Reproduction in Flowering Plants MCQs Exam 2027

Unit: Sexual Reproduction in Flowering Plants (Topic-Wise)

Topic 1: Flower Structure and Male Reproductive Organ (Androecium & Pollen Grain)

1. The male reproductive organ of a flower is called— [2012A]

   (A) Gynoecium

   (B) Androecium

   (C) Corolla

   (D) Calyx

2. The fertile part of the Stamen is—

   (A) Anther

   (B) Filament

   (C) Connective

   (D) Ovule

3. An anther represents—

   (A) Sporogonium

   (B) Male gametophyte

   (C) Male sporophyll (Microsporophyll)

   (D) Sporangium

4. How many microsporangia are found in a Dithecous anther?

   (A) 4

   (B) 3

   (C) 2

   (D) 1

5. The process of formation and differentiation of pollen grains from the anther is called—

   (A) Megasporogenesis

   (B) Microsporogenesis

   (C) Spermelogenesis

   (D) Double fertilization

6. During the formation of pollen grains from microspores, the microspore mother cell undergoes—

   (A) One meiotic division

   (B) One mitotic division

   (C) One meiotic and one mitotic division

   (D) One meiotic and two mitotic divisions

7. How many pollen mother cells are required to produce 1000 pollen grains?

   (A) 200

   (B) 250

   (C) 300

   (D) 100

8. How many meiotic divisions are necessary for the formation of 100 pollen grains?

   (A) 100

   (B) 50

   (C) 25

   (D) 26

9. A pollen grain is—

   (A) Haploid ($n$)

   (B) Diploid ($2n$)

   (C) Triploid ($3n$)

   (D) Tetraploid

10. The pollen wall is— [2021A]

    (A) Single-layered

    (B) Double-layered (Exine & Intine)

    (C) Triple-layered

    (D) Multi-layered

11. The outer layer of pollen (Exine) is made of— [2017A, 2023A]

    (A) Pectocellulose

    (B) Lignocellulose

    (C) Sporopollenin

    (D) Pollen kit

12. The inner wall of the pollen grain (Intine) is made of—

    (A) Sporopollenin

    (B) Cellulose and Pectin

    (C) Lignin

    (D) Cutin

13. A pollen grain along with the pollen tube represents—

    (A) Male sporophyte

    (B) Male gametophyte

    (C) Female sporophyte

    (D) Female gametophyte

14. In angiosperms, two male gametes are formed after the division of which cell? [2024A]

    (A) Vegetative cell

    (B) Generative cell

    (C) Microspore mother cell

    (D) Microspore

15. How many nuclei are present in a mature pollen grain?

    (A) 1

    (B) 2 (Vegetative & Generative)

    (C) 3

    (D) 4

16. The innermost layer of the anther that provides nutrition to developing pollen grains— [2023A]

    (A) Epidermis

    (B) Endothecium

    (C) Middle layer

    (D) Tapetum

17. The cells of the Tapetum are— [2024A]

    (A) Haploid

    (B) Diploid

    (C) Polyploid

    (D) None of these

18. At what temperature can pollen grains be stored in liquid nitrogen for many years? [2022A]

    (A) $-196°C$

    (B) $-80°C$

    (C) $-120°C$

    (D) $-160°C$

19. Pollen grains are yellow in color due to the presence of—

    (A) Flavonoids and Carotenoids

    (B) Sulfur

    (C) Chromoplasts

    (D) Etiolin

20. The male gametophyte of an angiosperm (monocot) is—

    (A) Microsporangium

    (B) Microspore (Pollen grain)

    (C) Nucellus

    (D) Stamen

21. Auxin present in pollen grains helps in the growth of—

    (A) Pollen grain and ovary

    (B) Only pollen tube

    (C) Only ovary

    (D) Male gamete

22. The ploidy of Microspore Mother Cell (MMC) in the pollen sac is—

    (A) Diploid ($2n$)

    (B) Haploid ($n$)

    (C) Triploid ($3n$)

    (D) Tetraploid

23. Pollen grains are not green because—

    (A) They lack chloroplasts

    (B) Plastids degenerate

    (C) Plastids are converted into chromoplasts

    (D) Due to attraction of vectors

24. If there are 4 sporogenous cells in an anther, the number of pollen grains will be—

    (A) 4

    (B) 8

    (C) 16

    (D) 12

Topic 2: Female Reproductive Organ and Ovule (Gynoecium & Ovule)

25. The female whorl (Gynoecium) is made of— [2019A]

    (A) Stigma

    (B) Style

    (C) Ovary

    (D) All of the above

26. When carpels are fused together in a gynoecium, it is called— [2022A]

    (A) Apocarpous

    (B) Syncarpous

    (C) Monocarpellary

    (D) Multicarpellary

27. The term ‘Pistillate’ is used for— [2023A]

    (A) Bisexual flower

    (B) Unisexual female flower

    (C) Unisexual male flower

    (D) Staminate flower

28. The stalk of the ovule is called— [2020A]

    (A) Funicle

    (B) Caruncle

    (C) Nucellus

    (D) Pedicel

29. The base of the ovule is known as— [2024A]

    (A) Chalaza

    (B) Micropyle

    (C) Hilum

    (D) Funicle

30. The opening (entry point) of the ovule is called— [2020A]

    (A) Micropyle

    (B) Chalaza

    (C) Hilum

    (D) Funicle

31. Orthotropous ovule is found in— [2023A]

    (A) Polygonum

    (B) Pea

    (C) Sunflower

    (D) Brinjal

32. The tissue inside the ovary that is attached to the ovules—

    (A) Funicle

    (B) Hilum

    (C) Placenta

    (D) Chalaza

33. Perisperm is the remnant part of— [2023A]

    (A) Nucellus

    (B) Embryo

    (C) Endosperm

    (D) Integument

34. The process of formation of megaspores from Megaspore Mother Cell (MMC) is— [2024A]

    (A) Microsporogenesis

    (B) Megasporogenesis

    (C) Pollination

    (D) Fertilization

35. The cell within the ovule that undergoes meiosis to form four haploid cells— [2024A]

    (A) Nucellar cell

    (B) Megaspore Mother Cell (MMC)

    (C) Integument cell

    (D) Chalazal cell

36. How many meiotic divisions are required to produce 100 functional megaspores?

    (A) 100

    (B) 50

    (C) 25

    (D) 26

37. A typical angiosperm embryo sac is— [2021A]

    (A) 7-celled, 8-nucleated

    (B) 8-celled

    (C) 5-celled

    (D) 4-celled

38. The embryo sac originates from— [2020A]

    (A) Microspore

    (B) Microsporangium

    (C) Functional Megaspore

    (D) Pollen tube

39. The egg apparatus consists of—

    (A) Egg and antipodals

    (B) Polar nuclei

    (C) Egg and synergids

    (D) Egg only

40. Filiform apparatus is a characteristic feature of—

    (A) Synergids

    (B) Egg cell

    (C) Anther wall

    (D) Antipodal cells

41. Which of the following is not part of the egg apparatus? [2024A]

    (A) Synergids

    (B) Egg

    (C) Antipodal cells

    (D) Filiform apparatus

42. Synergid cells are— [2023A]

    (A) Haploid ($n$)

    (B) Diploid ($2n$)

    (C) Triploid ($3n$)

    (D) Polyploid

43. The secondary nucleus located in the embryo sac is—

    (A) Haploid

    (B) Diploid ($2n$)

    (C) Triploid

    (D) Tetraploid

44. The ovary of a flower is—

    (A) Haploid

    (B) Diploid ($2n$)

    (C) Triploid

    (D) Tetraploid

Topic 3: Pollination

45. The transfer of pollen grains from anther to stigma is called—

    (A) Fertilization

    (B) Pollination

    (C) Megasporogenesis

    (D) None

46. Flowers of self-pollinated (Cleistogamous) plants are— [2018A, 2019A]

    (A) Bisexual

    (B) Unisexual

    (C) Flowers that never open

    (D) None of these

47. In plants with ‘Cleistogamy’, which of the following definitely occurs? [2018A]

    (A) Self-pollination

    (B) Cross-pollination

    (C) Both (A) and (B)

    (D) None of these

48. Pollen deposition on the stigma of another flower of the same plant is called—

    (A) Dichogamy

    (B) Geitonogamy

    (C) Xenogamy

    (D) Hydrogamy

49. ‘Anemophily’ pollination occurs through— [2013A]

    (A) Birds

    (B) Bats

    (C) Snail

    (D) Air (Wind)

50. Wind pollination occurs in—

    (A) Salvia

    (B) Vallisneria

    (C) Coconut

    (D) Bottle Brush

51. In maize (corn), pollination occurs via—

    (A) Insects

    (B) Wind

    (C) Water

    (D) Birds

52. In Water Hyacinth (Eichhornia) and Lotus, pollination is by— [2023A]

    (A) Water

    (B) Insects or Wind

    (C) Birds

    (D) Bats

53. Which of the following is a water-pollinated (Hydrophilous) plant?

    (A) Zostera

    (B) Vallisneria

    (C) Hydrilla

    (D) All of these

54. Pollination in Lotus occurs by— [2021A]

    (A) Water

    (B) Wind

    (C) Insects

    (D) All of these

55. The medium of ‘Entomophily’ pollination is— [2016A]

    (A) Birds

    (B) Bats

    (C) Insects

    (D) Wind

56. Pollination by bats is called— [2016A]

    (A) Ornithophily

    (B) Chiropterophily

    (C) Malacophily

    (D) Anemophily

57. Night-blooming flowers are usually—

    (A) Light in weight

    (B) Fragrant and small

    (C) Brightly colored

    (D) Bloomed in clusters

58. Offspring obtained from cross-pollination show—

    (A) High degree of variability

    (B) Sterility

    (C) Recessive traits

    (D) Genetic uniformity

59. When female reproductive organs mature before the anther in the same flower, it is—

    (A) Protogyny

    (B) Protandry

    (C) Heterogamy

    (D) Autogamy

60. If anther and stigma mature at the same time, it is called—

    (A) Allogamy

    (B) Dichogamy

    (C) Homogamy

    (D) Syngamy

61. Emasculation is related to— [2022A]

    (A) Mass selection

    (B) Clonal selection

    (C) Hybridization

    (D) Pure line

Topic 4: Fertilization

62. Who discovered Fertilization? [2014A]

    (A) Strasburger

    (B) Nawaschin

    (C) Leeuwenhoek

    (D) Darwin

63. Double Fertilization is a unique feature of— [2015A]

    (A) Fungi

    (B) Bryophytes

    (C) Angiosperms

    (D) Algae

64. Who discovered Double Fertilization? [2019A]

    (A) Strasburger

    (B) Nawaschin

    (C) Robert Hooke

    (D) Mendel

65. Double Fertilization involves the fusion of—

    (A) One egg and two sperms

    (B) Polar nuclei and egg nucleus

    (C) Male gamete with egg and another with synergid

    (D) One male gamete with egg and another with secondary nucleus

66. How many nuclei take part in double fertilization in angiosperms?

    (A) Two

    (B) Three

    (C) Four

    (D) Five

67. In angiosperms, fertilization takes place in—

    (A) Nucellus

    (B) Embryo sac

    (C) Ovary wall

    (D) Style

68. When the pollen tube enters the embryo sac, it contains—

    (A) Two male gametes

    (B) Two male nuclei

    (C) Four male gametes

    (D) One male gamete

69. Development of fruit from the ovary without fertilization is called—

    (A) Parthenocarpy

    (B) Apomixis

    (C) Asexual reproduction

    (D) Sexual reproduction

70. Which of the following is a Parthenocarpic fruit? [2022A]

    (A) Guava

    (B) Mango

    (C) Banana

    (D) Apple

Topic 5: Endosperm and Embryo Development

71. The ploidy of endosperm in angiosperms is— [2020A, 2023A]

    (A) Haploid ($n$)

    (B) Diploid ($2n$)

    (C) Triploid ($3n$)

    (D) Tetraploid ($4n$)

72. The main function of endosperm in angiosperms is— [2018A]

    (A) To form embryo

    (B) To provide nutrition to the embryo

    (C) To form seed coat

    (D) To form fruit

73. Endosperm in Gymnosperms is—

    (A) Haploid ($n$)

    (B) Diploid ($2n$)

    (C) Triploid ($3n$)

    (D) Polyploid

74. The protein-rich endosperm in maize is called—

    (A) Apophysis

    (B) Scutellum

    (C) Coleoptile

    (D) Aleurone layer

75. Seeds with endosperm are called— [2020A]

    (A) Apocarpic

    (B) Polyembryonic

    (C) Endocarpic

    (D) Endospermic (Albuminous)

76. Non-endospermic seed is found in—

    (A) Castor

    (B) Pea

    (C) Coconut

    (D) Maize

77. Which of the following is not an endospermic seed?

    (A) Pea

    (B) Castor

    (C) Maize

    (D) Wheat

78. If a root cell has 14 chromosomes, the number in the endosperm will be—

    (A) 14

    (B) 21 ($3n$)

    (C) 7

    (D) 28

79. The Scutellum in a grass seed is— [2024A]

    (A) Endosperm

    (B) Cotyledon

    (C) Seed coat

    (D) Embryonal axis

80. Coconut water (Liquid endosperm) is—

    (A) Cellular endosperm

    (B) Free nuclear endosperm

    (C) Helobial endosperm

    (D) Embryo

Topic 6: Seed and Fruit

81. The ovule develops into— [2021A]

    (A) Fruit

    (B) Flower

    (C) Seed

    (D) Embryo

82. The ovary develops into—

    (A) Fruit

    (B) Seed

    (C) Endosperm

    (D) Inflorescence

83. Which of the following is a False fruit? [2017A, 2023A]

    (A) Mango

    (B) Lemon

    (C) Paddy

    (D) Apple

84. ‘Aril’ is the edible part of— [2015A, 2016A]

    (A) Custard apple

    (B) Litchi

    (C) Bael

    (D) Mango

85. The edible part of an Apple is— [2018A]

    (A) Pericarp

    (B) Fleshy Thalamus

    (C) Aril

    (D) Endosperm

86. The place where the funicle is attached to the body of the ovule—

    (A) Chalaza

    (B) Micropyle

    (C) Hilum

    (D) Nucellus

87. The ovule develops to form— [2021A]

    (A) Pericarp

    (B) Seed

    (C) Aril

    (D) Endosperm

88. Chilgoza is obtained from— [2021A]

    (A) Cycas

    (B) Pinus

    (C) Gnetum

    (D) Ephedra

89. Floral organs are modified—

    (A) Leaves

    (B) Shoots

    (C) Sporangia

    (D) Meristems

Topic 7: Special Modes of Reproduction (Apomixis, Polyembryony)

90. Formation of seeds without fertilization is called— [2018A]

    (A) Fragmentation

    (B) Apomixis

    (C) Double fertilization

    (D) None of these

91. In which species does seed formation occur by Apomixis? [2018A]

    (A) Asteraceae and Grasses

    (B) Mustard

    (C) Citrus and Mango

    (D) None of these

92. The occurrence of more than one embryo in a seed is—

    (A) Parthenocarpy

    (B) Apomixis

    (C) Polyembryony

    (D) Fertilization

93. The cause of polyembryony in Citrus is—

    (A) Synergid cells

    (B) Antipodal cells

    (C) Nucellar cells

    (D) Secondary nucleus

Mixed Practice & Other Important Questions (94-160)

94. A Bisexual animal is— [2012A]

    (A) Hen

    (B) Snake

    (C) Both A and B

    (D) Earthworm

95. Penicillium produces— [2022A]

    (A) Mitospore

    (B) Zoospore

    (C) Meiospore

    (D) Both (A) and (C)

96. Who first demonstrated sexual reproduction in plants?

    (A) Von Baer

    (B) Camerarius

    (C) Van Beneden

    (D) Nawaschin

97. Chromosome number in Microspore Mother Cell (SMC) is—

    (A) n

    (B) 2n

    (C) 3n

    (D) 4n

98. The pores in the outer layer (Exine) of pollen are—

    (A) Germ pores

    (B) Micropyle

    (C) Hilum

    (D) Chalaza

99. How many haploid nuclei are there in an embryo sac?

    (A) 4

    (B) 6

    (C) 8

    (D) 7

100. Thread-like structure at the tip of synergids—

     (A) Filiform apparatus

     (B) Hilum

     (C) Chalaza

     (D) Integument

101. The study of pollen grains is called—

     (A) Palynology

     (B) Anthology

     (C) Pomology

     (D) Mycology

102. Growth of pollen tube in angiosperms is—

     (A) Hydrotropic

     (B) Chemotropic

     (C) Phototropic

     (D) Geotropic

103. The main body of an ovule is—

     (A) Nucellus

     (B) Integument

     (C) Funicle

     (D) Chalaza

104. In dicots, the seed coat develops after fertilization from—

     (A) Nucellus

     (B) Integuments

     (C) Ovary wall

     (D) Endosperm

105. The diameter of a pollen grain is roughly—

     (A) 25-50 micrometers

     (B) 100-200 micrometers

     (C) 10-20 micrometers

     (D) 5 micrometers

106. Food stored in the endosperm is—

     (A) Starch, Fat, Protein

     (B) Only Sugar

     (C) Only Vitamins

     (D) Water

107. Which of the following is not a part of the ovule? [2024A]

     (A) Epidermis

     (B) Tapetum

     (C) Endothecium

     (D) Micropyle (Contextual: refer to tissue layers)

108. Allergy caused by pollen grains is often due to—

     (A) Parthenium (Carrot grass)

     (B) Rose

     (C) Marigold

     (D) Sunflower

109. In angiosperms, the Primary Endosperm Nucleus (PEN) is—

     (A) Haploid

     (B) Diploid

     (C) Triploid ($3n$)

     (D) Tetraploid

110. Synergids are located at which end?

     (A) Micropylar end

     (B) Chalazal end

     (C) Middle

     (D) Outer surface

111. Antipodal cells are found at which end?

     (A) Micropylar end

     (B) Chalazal end

     (C) Middle

     (D) Funicle

112. Polar nuclei are situated in—

     (A) Egg cell

     (B) Synergids

     (C) Central cell

     (D) Antipodals

113. An ovule covered by integuments is—

     (A) Ovule (Megasporangium)

     (B) Embryo sac

     (C) Ovary

     (D) Flower

114. Pollen grain is related to Embryo sac as—

     (A) Sperm to Egg

     (B) Male Gametophyte to Female Gametophyte

     (C) Male Gametophyte to Egg

     (D) Sperm to Female Gametophyte

115. Mass of pollen grains found in orchids—

     (A) Pollinium

     (B) Pollen kit

     (C) Exine

     (D) Intine

116. Passage between the integuments of the ovule—

     (A) Micropyle

     (B) Chalaza

     (C) Hilum

     (D) Funicle

117. After fertilization, the ovule forms the seed and the ovary forms the—

     (A) Fruit

     (B) Inflorescence

     (C) Leaf

     (D) Root

118. Which cells of the embryo sac degenerate shortly after fertilization?

     (A) Synergids and Antipodals

     (B) Egg cell

     (C) Central cell

     (D) Embryo

119. Result of Double Fertilization is—

     (A) Seed

     (B) Fruit

     (C) Endosperm

     (D) Embryo

120. Which of the following is diploid (2n)?

     (A) Pollen grain

     (B) Egg cell

     (C) Zygote

     (D) Endosperm

121. The function of germ pore in pollen is—

     (A) Exit for pollen tube

     (B) Water absorption

     (C) Respiration

     (D) Protection

122. Ploidy of Nucellus is—

     (A) n

     (B) 2n

     (C) 3n

     (D) 4n

123. Largest pollen grain is found in—

     (A) Mirabilis

     (B) Myosotis

     (C) Lotus

     (D) Maize

124. Ovule in which micropyle, chalaza and hilum are in a straight line—

     (A) Orthotropous

     (B) Anatropous

     (C) Campylotropous

     (D) Amphi-tropous

125. Most common type of ovule (80% of angiosperms)—

     (A) Orthotropous

     (B) Anatropous

     (C) Circinotropous

     (D) Hemi-anatropous

126. The central cell of the embryo sac is—

     (A) Binucleate

     (B) Uninucleate

     (C) Four-nucleate

     (D) Enucleate

127. Viability of pollen grains depends on—

     (A) Temperature only

     (B) Humidity only

     (C) Both Temperature and Humidity

     (D) Light

128. Pollen viability in wheat and rice is—

     (A) 30 minutes

     (B) Several months

     (C) 1 year

     (D) 10 minutes

129. Pollen viability in Leguminosae (Pea family) is—

     (A) 30 minutes

     (B) For several months

     (C) 24 hours

     (D) 1 week

130. Male gametes in angiosperms are formed by the division of—

     (A) Vegetative cell

     (B) Generative cell

     (C) Tapetum

     (D) Epidermis

131. Number of integuments in most ovules—

     (A) 1

     (B) 2 (Bitegmic)

     (C) 3

     (D) None

132. Which is not a ‘post-fertilization’ event?

     (A) Endosperm development

     (B) Embryo development

     (C) Pollination

     (D) Seed formation

133. Meiosis in the ovule occurs in—

     (A) Megaspore Mother Cell

     (B) Nucellus

     (C) Chalaza

     (D) Integument

134. For forming 100 seeds in angiosperms, how many meiosis are needed?

     (A) 100

     (B) 125 ($100 \text{ female} + 25 \text{ male}$)

     (C) 200

     (D) 150

135. ‘Saffron’ is obtained from which part of the flower?

     (A) Petal

     (B) Style and Stigma

     (C) Stamen

     (D) Sepal

136. Parthenocarpy can be induced by—

     (A) Growth hormones (Auxin, Gibberellin)

     (B) Nitrogen

     (C) Water

     (D) Salt

137. In dicot embryo, the portion above the attachment of cotyledons—

     (A) Epicotyl

     (B) Hypocotyl

     (C) Plumule

     (D) Radicle

138. Lower end of embryonal axis which forms the radicle—

     (A) Epicotyl

     (B) Hypocotyl

     (C) Scutellum

     (D) Coleoptile

139. Layer covering the Plumule in monocots—

     (A) Coleoptile

     (B) Coleorhiza

     (C) Seed coat

     (D) Scutellum

140. Layer covering the Radicle in monocots—

     (A) Coleoptile

     (B) Coleorhiza

     (C) Integument

     (D) Aril

141. Outer integument of ovule forms—

     (A) Testa

     (B) Tegmen

     (C) Perisperm

     (D) Endosperm

142. Inner integument of ovule forms—

     (A) Testa

     (B) Tegmen

     (C) Aril

     (D) Hilum

143. Aril in litchi develops from—

     (A) Base of Funicle

     (B) Chalaza

     (C) Micropyle

     (D) Ovary

144. ‘Perisperm’ is prominent in—

     (A) Black pepper and Beet

     (B) Pea and Gram

     (C) Maize

     (D) Mango

145. Development of haploid embryo without fertilization—

     (A) Parthenocarpy

     (B) Parthenogenesis

     (C) Apospory

     (D) Apogamy

146. Benefit of ‘Apomixis’—

     (A) Maintains hybrid traits

     (B) Increases diversity

     (C) Reduces growth rate

     (D) None

147. Endosperm is formed by—

     (A) First fertilization

     (B) Triple fusion

     (C) Megasporogenesis

     (D) Pollination

148. What is formed after Triple Fusion?

     (A) Zygote

     (B) Primary Endosperm Nucleus (PEN)

     (C) Embryo

     (D) Seed

149. Male gametes in angiosperms are—

     (A) Non-motile

     (B) Motile

     (C) Multi-flagellated

     (D) None of these

150. Who discovered the pollen tube?

     (A) G.B. Amici

     (B) Strasburger

     (C) Nawaschin

     (D) Mendel

151. ‘Protandry’ is—

     (A) Anther matures before stigma

     (B) Stigma matures before anther

     (C) Both mature together

     (D) None

152. Example of Cleistogamous flowers—

     (A) Commelina, Viola

     (B) Rose

     (C) Wheat

     (D) Peepal

153. Example of a Monoecious plant—

     (A) Maize, Castor, Coconut

     (B) Papaya

     (C) Date palm

     (D) Mulberry

154. Example of a Dioecious plant—

     (A) Papaya, Date palm

     (B) Maize

     (C) Hibiscus

     (D) Pea

155. Main function of Stigma—

     (A) To receive pollen grains

     (B) To make male gamete

     (C) To form fruit

     (D) To form seed

156. Which cell of the embryo sac forms the ‘secondary nucleus’?

     (A) Synergid

     (B) Antipodal

     (C) Central cell

     (D) Egg cell

157. Food in the Nucellus is stored as—

     (A) Abundant reserve food

     (B) Only water

     (C) Hormones

     (D) None

158. Part of the integument where triple fusion does not occur—

     (A) Micropyle (Context: entry point)

     (B) Chalaza

     (C) Funicle

     (D) All

159. In ‘Apospory’, embryo develops from—

     (A) Diploid nucellar cell

     (B) Haploid megaspore

     (C) Synergid

     (D) None

160. During fertilization, the female gametophyte in the ovule is—

     (A) Embryo sac

     (B) Nucellus

     (C) Integument

     (D) Egg apparatus