Multiple Choice Questions

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The term 'keel' is used for special type of

  • Sepals

  • Petals

  • Stamenstellen

  • Carpels


B.

Petals

Keel is a special type of petal found in the papilionaceous type of Corolla. Papilionaceous type is a butterfly like the Corolla has one large posterior standard, two lateral wings, two innermost and smaller keels.


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Epigynous flowers are present in

  • Mustad

  • Brinjal

  • China rose

  • Cucumber


In Ruscus, the stem is a

  • Phyllode

  • Cladode

  • Offset

  • Sucker


Catkin inflorescence is found in

  • Wheat

  • Oat

  • Mulberry

  • Fig


Three floral diagrams are given here. Their respective families are assigned in the answer key. Find out the families to which these diagrams belong to

  • A-Liliaceae, B-Asteraceae, C-Solanaceae

  • A-Asteraceae, B-Solanaceae, C-BRassicaceae

  •  A-Asteraceae, B-Solanaceae, C-Asteraceae

  •  A-Poaceae, B-Solanaceae, C-Asteraceae


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In Dianthus, placentation is

  • Basal

  • Free central

  • Axile

  • Marginal


The material, which arrests cell division, is obtained from

  • Crocus

  • Colchicum

  • Dalbergis

  • Chysanthomum


Coffee and quinine are obtained from the

  • Leguminosae

  • Asteraceae

  • Rubiaceae

  • Poaceae


Study the following statements and select the option with correct statements.

  1. Pulvinus leaf base is present in some leguminous plants
  2. In Eichhornia, the petioles expand becomes green and synthesise food.
  3. Opposite phyllotaxy is seen in guava.

  • I and II

  • I and III

  • II and III

  • I, II and III


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A fern prothallus is bisexual. If fertilisation takes place between their gametes than it is known as

  • cross- fertilisation

  • self- fertilisation

  • isogamous

  • viviparous


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