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Sexual Reproduction in flowering Plants

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

Previous Year Papers

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Currently only available for.
Class 10 Class 12

In angiosperms, functional megaspore develops into

  • embryo sac

  • ovule

  • endosperm

  • pollen sac


A.

embryo sac

In angiosperms, the unit of female gametophyte (embryo sac) is functional megaspore.

In angiosperms, the unit of female gametophyte (embryo sac) is functional megaspore.

505 Views . 8 Shares

Simultaneous meiotic division of microspore mother cells leads to :
  • tetrahedral tetrad
  • linear tetrad
  •  isobilateral
  • decussate tetrad.

A.

tetrahedral tetrad
1487 Views . 8 Shares

In a bisexual flower when the gynaecium matures earlier than anther, it is called as :
  • protandry
  • protogyny
  • herkogyny
  • None of the above.

B.

protogyny
1265 Views . 11 Shares

The female gametophyte of a typical dicot at the time of fertilization is:
  •  8-celled
  • 7-celled
  • 6-celled
  • 4-celled

B.

7-celled
2359 Views . 6 Shares

The innermost layer of anther is tapetum whose function is :
  • dehiscence
  • mechanical
  • nutrition
  •  protection.

C.

nutrition
1827 Views . 7 Shares

The fertilization occurs in the :
  • ovary
  • ovule
  • embryo sac
  • nucellus.

A.

ovary
1446 Views . 7 Shares

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