Question:

The pollen grain is related to the embryo sac as

Updated On: Jun 21, 2022
  • Sperm is to the female gametophyte
  • Sperm is to the egg
  • Male gametophyte is to the embryo sac
  • Male gametophyte is to the egg
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The Correct Option is C

Solution and Explanation

Pollen grain (microspore) is a structure which contains male gametophyte inside it. Similarly, embryo sac (female gametophyte) contains egg cell inside it.
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Concepts Used:

Pre-fertilization events - Monoecious Plant

Fertilization in plants may be a process during which they undergo amphimixis in consequence of pollination and germination. During a physicochemical process, the male gametes (known as pollen) infusion with the feminine gametes (known as ovum) forms diploid zygote after carpal pollinates. The whole process happens in a zygote which later germinates into a seed. During the method, what happens is male gametes are transferred into female reproductive organs through pollinators (butterflies, birds, honey bees, bats, and flower beetles). This leads to an embryo being formed during a seed. Flowers are the reproductive organs of angiosperms and reproduce in a completely different method.

Read More: Flower Structure

The two important pre-fertilization procedures are gametogenesis and gamete transfer. The female and male reproductive forms in flowers are the androecium and the gynoecium which distinguishes and goes through development.

"Mono" means single so a monoecious plant is one that bears both male and female sex organs on same plant. The monoecious plant can produce bisexual flowers or unisexual flowers. A dioecious plant is one that bears both male and female sex organs on different plants.

Read Further: Sexual Reproduction in Flowering Plants