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    CBSE

    Subject

    Biology
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    NEET Biology : Sexual Reproduction in flowering Plants

    Multiple Choice Questions

    61.

    Attractants and rewards are required for

    • Anemophily

    • Entomophily

    • Hydrophily

    • Hydrophily

    Answer
    • 62.

    Double fertilization is exhibited by

    • Gymnosperms

    • Algae

    • Fungi

    • Fungi

    Answer
    • 63.

    The arrangement of the nuclei in a normal embryo sac in the dicot plants is

    • 2+4+2

    • 3+2+3

    • 2+3+3

    • 2+3+3

    Answer
    • 64.

    In a cereal grain the single cotyledon of embryo is represented by

    • coleorhiza

    • scutellum

    • prophyll

    • prophyll

    Answer
    • 65.

    Double fertilization is

    • Fusion of two male gametes of a pollen tube with two different eggs

    • Fusion of one male gamete with two polar nuclei

    • Syngamy and triple fusion

    • Fusion of two male gametes with one egg

    Answer
    • 66.

    Coconut fruit is a

    • Drupe

    • Berry

    • Nut

    • Nut

    Answer
    • 67.

    Flowers which have single ovule in the ovary and are packed into inflorescence are usually pollinated by

    • Water

    • Bee

    • Wind

    • Wind

    Answer
    • 68.

    A dioecious flowering plant prevents both:

    • Autogamy and xenogamy

    • Autogamy and geitonogamy

    • Geitonogamy and xenogamy

    • Geitonogamy and xenogamy

    Answer
    • 69.

    Functional megaspore in an angiosperm develops into

    • Ovule

    • Endosperm

    • Embryo sac

    • Embryo sac

    Answer
    • 70.

    An enzyme that can stimulate germination of barley seeds is

    • α-amylase

    • lipase

    • protease

    • protease

    Answer
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