Angiosperms-Pollination an Fertilization (IFS Botany (Mains)): Questions 1 - 3 of 3

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Question number: 1

» Angiosperms » Pollination an Fertilization

Appeared in Year: 2015

Essay Question▾

Describe in Detail

Explain what is parthenocarpy. (Paper 1, Section B)

Explanation

Definition:

  • Parthenocarpy is the production of fruit without fertilization of an egg in the ovary.
  • In botany and in horticulture, parthenocarpy means virgin fruits mean it is naturally or artificially induced fruit production without the fertilization of ovules.

  • The fruit produced by parthenocarpy is seedless.

  • Stenospermocarpy may also produce apparently… (344 more words) …

Question number: 2

» Angiosperms » Pollination an Fertilization

Appeared in Year: 2014

Essay Question▾

Describe in Detail

Comment on the Stratification of pollen grain walls. (Paper - 1, Section - B)

Explanation

  • Pollen is micro gametophytes of seed plants which produce the male gametes or sperm cells.

  • Pollen grains have a hard coat that protects the male gametes during the process of their movement between the stamens to the pistil of flowering plants or from the male cone to the female cone… (261 more words) …

Question number: 3

» Angiosperms » Pollination an Fertilization

Appeared in Year: 2013

Essay Question▾

Describe in Detail

Comment on: Double fertilization and triple fertilization in Angiosperms (Paper 1, Section B)

Explanation

  • The process of double fertilization occurs in angiosperms (flowering plants).

  • In the process of double fertilization, out of the two sperm nucleus, one sperm nucleus fuses with the egg nucleus to form an embryo in process called syngamy and another male sperm nucleus fuses with polar nuclei to form endosperm… (408 more words) …

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