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Sexual Reproduction in Flowering Plants NEET PYQs
Class XII Biology
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NCERT Based
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NEET Practice
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24 questions in this chapter
In some plants thalamus contributes to fruit formation. Such fruits are termed as:
A False fruits
B Aggregate fruits
C True fruits
D Parthenocarpic fruit
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In water hyacinth and water lily, pollination takes
place by:
A insects or wind
B water currents only
C wind and water
D insects and water
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The plant parts which consist of two generations -
one within the other:
A. Pollen grains inside the anther
B. Germinated pollen grain with two male gametes
C. Seed inside the fruit
D. Embryo sac inside the ovule
A (A) only
B (A), (B) and (C)
C (C) and (D)
D (A) and (D)
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Which one of the following statements regarding
post-fertilization development in flowering plants is incorrect?
A Ovules develop into embryo sac
B Ovary develops into fruit
C Zygote develops into embryo
D Central cell develops into endosperm
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Is some plants, the female gamete develops into
embryo without fertilization. This phenomenon is
known as:
A Parthenogenesis
B Syngamy
C Parthenocarpy
D Autogamy
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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 wetting.
D. Pollen grains of some hydrophytes are long and ribbon like.
E. In some hydrophytes, the pollen grains are carried passively inside water.
Choose the correct answer from the options given below.
A B, C, D and E only
B A, C, D and E only
C C, D and E only
D A, B, C and D only
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How many theca are present in each lobe of a typical bilobed angiosperm anther?
A 2
B 6
C 8
D 12
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A typical angiosperm anther is bilobed, and each lobe contains two theca (dithecous anther).
Which of the following in the female gametophyte of an angiosperm helps in guiding the pollen tube for fertilizing the egg?
A Antipodals
B Synergids
C Central cell
D Polar nucleus
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Synergids possess a filiform apparatus that guides the pollen tube towards the egg apparatus.
Which of the following plants produces non-albuminous seeds?
A Wheat
B Maize
C Barley
D Pea
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Pea produces non-albuminous (exalbuminous) seeds because the endosperm is consumed during embryo development.
If the diploid chromosome number of a typical angiosperm is 36, what would be the chromosome number in its endosperm?
A 18
B 36
C 54
D 72
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The endosperm is triploid (3n). If the diploid chromosome number is 36 (2n), then n = 18 and the endosperm chromosome number is 3n = 54.