NEET Biology - New - Sexual Reproduction in Flowering Plants

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Question - 1

Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other?

  • A Banana
  • B Yucca
  • C Hydrilla
  • D Viola

Question - 2

Which of the following has proved helpful in preserving pollen as fossils?

  • A Oil content
  • B Cellulosic intine
  • C Pollenkitt
  • D Sporopollenin

Question - 3

Pollen grains can be stored for several years in liquid nitrogen having a temperature of

  • A - 196°C
  • B - 80°C
  • C - 120oC
  • D -160°C

Question - 4

Attractants and rewards are required for

  • A Anemophily
  • B Entomophily
  • C Hydrophily
  • D Cleistogamy

Question - 5

A dioecious flowering plant prevents both:

  • A Antogamy and Xenogamy
  • B Autogamy and Geitonogamy
  • C Geitonogamy and Xenogamy
  • D Cleistogamy and Xenogamy

Question - 6

Functional megaspore in an angiosperm develops into

  • A Ovule
  • B Endosperm
  • C Embryo sac
  • D Embryo

Question - 7

Flowers which have a single ovule in the ovary and are packed into inflorescence are usually pollinated by

  • A Water
  • B Bee
  • C Wind
  • D Bat

Question - 8

The ovule of an angiosperm is technically equivalent to

  • A megasporophyll
  • B megaspore mother cell
  • C megaspore
  • D megasporangium

Question - 9

In majority of angiosperms

  • A there are numerous antipodal cells
  • B reduction division occurs in the megaspore mother cells
  • C a small central cell is present in the embryo sac
  • D egg has a filiform apparatus

Question - 10

Pollination in water hyacinth and water lily is brought about by the agency of:

  • A Bats
  • B Water
  • C Insects or winds
  • D Birds