Reproduction in flowering plants

Egg apparatus consists of

• egg and two synergids

• egg and central cell

• egg and antipodal cell

• egg and one synergid

Male gamete in angiosperms are formed by the division of

• generative cell

• vegetataive cell

• microspore mother cell

• microspore

Apomixis is the type of reproduction that resultsin the development of

• embryo from nucellus

• embryo from endosperm

• new organism without fusion from gametes

• none of the above

Unisexuality of flower prevents

• geitonogamy, but not xenogamy

• autogamy and geitonogamy

• autogamy, but not geitonogamy

• both geitonogamy and xenogamy

Which one of the following is resistant to enzyme action

• pollen exine

• leaf cuticle

• cork

• wood fibre

Development of female gametophyte directly from megaspore mother cell without meiosis is called

• apogamy

• apospory

• syngamy

• parthenocarpy

Double fertilization is found without any exception in

• bryophytes

• gymnosperms

• angiosperms

• pteridophytes

Process in which fertilization occurs without fusion of gametes

• amphimixis

• parthenogenesis

• apomixis

• none of these

A plant has 24 chromosomes in its microspore mother cell. The number of chromosomes in its endosperm will be

• 36

• 24

• 12

• 48

Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called

• xenogamy

• geitonogamy

• karyogamy

• autogamy