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    CBSE

    Subject

    Biology
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    NEET Biology : Plant Growth and Development

    Multiple Choice Questions

    11.

    Typical growth curve in plants is

    • sigmoid

    • linear

    • Stair-steps shaped

    • Stair-steps shaped

    Answer
    • 12.

    Typical growth curve in plants is 

    • sigmoid

    • linear

    • stair-steps shaped

    • stair-steps shaped

    Answer
    • 13.

    A drupe develop in 

    • Wheat

    • pea

    • tomato

    • tomato

    Answer
    • 14.

    Phototropic curvature is the result of uneven distribution of 

    • gibberellin

    • phytochrome

    • cytokinins

    • cytokinins

    Answer
    • 15.

    The technical term used for the androecium in a flower of China rose (Hibiscus rosa siensis( is 

    • monadelphous

    • diadelphous

    • polyandrous

    • polyandrous

    Answer
    • 16.

    One of the commonly used plant growth hormone in tea plantations is 

    • ethylene

    • abscisic acid

    • Zeatin

    • Zeatin

    Answer
    • 17.

    Root development is promoted by

    • abscisic acid

    • auxin

    • gibberellin

    • gibberellin

    Answer
    • 18.

    Stroma in the chloroplasts of higher plants contains

    • light -independent reaction enzymes

    • Light -dependent reaction enzymes

    • ribosomes

    • ribosomes

    Answer
    • 19.

    One of the synthetic auxins is

    • NAA

    • IAA

    • GA

    • GA

    Answer
    • 20.

    In which one of the following, the male and female gametophytes don't have free -living independent existence ?

    • Pteris

    • Funaria

    • Polytrichum

    • Polytrichum

    Answer
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