Multiple Choice Questions

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A drupe develop in 

  • Wheat

  • pea

  • tomato

  • tomato


D.

tomato

In mango, coconut, plum, etc., the fruit is known as drupe (stony fruit).They develop from monocarpellary, superior ovaries and are one seeded. In mango, the pericarp is well differentiated into an outer thin epicarp, a middle fleshy edible mesocarp and an inner stony hard endocarp.

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Typical growth curve in plants is 

  • sigmoid

  • linear

  • stair-steps shaped

  • stair-steps shaped

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One of the synthetic auxins is

  • NAA

  • IAA

  • GA

  • GA

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Root development is promoted by

  • abscisic acid

  • auxin

  • gibberellin

  • gibberellin

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

  • ethylene

  • abscisic acid

  • Zeatin

  • Zeatin

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

  • monadelphous

  • diadelphous

  • polyandrous

  • polyandrous

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

  • Pteris

  • Funaria

  • Polytrichum

  • Polytrichum

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Typical growth curve in plants is

  • sigmoid

  • linear

  • Stair-steps shaped

  • Stair-steps shaped

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Phototropic curvature is the result of uneven distribution of 

  • gibberellin

  • phytochrome

  • cytokinins

  • cytokinins

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Stroma in the chloroplasts of higher plants contains

  • light -independent reaction enzymes

  • Light -dependent reaction enzymes

  • ribosomes

  • ribosomes

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