Multiple Choice Questions

Advertisement

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

  • cross- fertilisation

  • self- fertilisation

  • isogamous

  • viviparous


B.

self- fertilisation

Self- fertilisation is the fusion of male and female gametes produced by the same individual. 

Cross- fertilisation is the fertilisation of male and female gametes produced by different individuals.

Isogamous  is the fusion of isogametes.

Viviparous is a term used for organisms which give birth to young ones.


Advertisement

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


The term 'keel' is used for special type of

  • Sepals

  • Petals

  • Stamenstellen

  • Carpels


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


In Ruscus, the stem is a

  • Phyllode

  • Cladode

  • Offset

  • Sucker


Advertisement

Epigynous flowers are present in

  • Mustad

  • Brinjal

  • China rose

  • Cucumber


Coffee and quinine are obtained from the

  • Leguminosae

  • Asteraceae

  • Rubiaceae

  • Poaceae


Catkin inflorescence is found in

  • Wheat

  • Oat

  • Mulberry

  • Fig


The material, which arrests cell division, is obtained from

  • Crocus

  • Colchicum

  • Dalbergis

  • Chysanthomum


Advertisement
<

In Dianthus, placentation is

  • Basal

  • Free central

  • Axile

  • Marginal


Advertisement