Multiple Choice Questions

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Which one of the following diagrams represents the placentation in Dianthus? 


B.

When the ovules are borne on the central axis and septa are absent as in Dianthus and Primerose, the Placentation is called central.

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The ovary is half inferior in flowers of 

  • cucumber

  • cotton

  • guava

  • guava

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Perigynous flowers are found in

  • guava

  • cucumber

  • China rose

  • China rose

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Ovary is half -inferior in the flowers of 

  • guava

  • plum

  • brinjal

  • brinjal

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Leaves become modified into spines in

  • Opuntia

  • pea

  • onion

  • onion

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In unilocular ovary with a single ovule, the placentation is 

  • marginal

  • basal

  • free central 

  • free central 

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Whorled, simple leaves with reticulate venation are present in

  • Calotropis

  • Neem

  • China rose

  • China rose

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Flowers are zygomorphic on 

  • Gulmohur

  • tomato

  • datura

  • datura

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The hilum is a scar on the

  • seed, where funicle was attached

  • fruit, where it was attached to pedicel

  • fruit, where style was present

  • fruit, where style was present

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The hilum is a scar on the 

  • seed, where funicle was attached

  • fruit, where it was attached to pedicel

  • fruit, where style was present

  • fruit, where style was present

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