Multiple Choice Questions

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The gynoecium consists of many free pistils in flowers of

  • Aloe

  • tomato

  • Papaver

  • Papaver


D.

Papaver

Apocarpous condition arises when the number of carpels is two or more and they are free from each other. e.g., Clematis, Michelia (Magnoliaceae), Aconitum, Ranunculus (Buttercup), etc.

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Placentation in tomato and lemon is

  • parietal

  • free central

  • marginal

  • marginal

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A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neurohormonal control system?

  • Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla

  • Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse

  • Hypothalamus activates the parasympathetic division of brain

  • Hypothalamus activates the parasympathetic division of brain

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Cymose inflorescence is present in

  • Solanum

  • Sesbania

  • Trifolium

  • Trifolium

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During gamete formation, the enzyme recombinase participates during

  • metaphase - I

  • anaphase-II

  • prophase-I

  • prophase-I

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Phyllode is present in

  • Asparagus

  • Euphorbia

  • Australian Acacia

  • Australian Acacia

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The correct sequence of cell organelles during photorespiration is

  • chloroplast - Golgi bodies - mitochondria

  • chloroplast-rough endoplasmic reticulum -dictyosomes

  • chloroplast-mitochondria-peroxisome

  • chloroplast-mitochondria-peroxisome

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Which one of the following is correctly matched?

  • Passive transport of nutrients - ATP

  • Apoplast - Plasmodesmata

  • Potassium-Readily mobilization

  • Potassium-Readily immobilization

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Which one of the following is a correct statements?

  • Pteridophyte gametophyte has a protonemal and leafy stage

  • In gymnosperms female gametophyte is free-living

  • Antheridiophores and archegoniophores are present in pteridophytes

  • Antheridiophores and archegoniophores are present in pteridophytes

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Which one of the following does not differ in E.coli and Chlamydomonas?

  • Ribosomes

  • Chromosomal organisation

  • Cell wall

  • Cell wall

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