Question

Double fertilization is exhibited by :

• A. Algae
• B. Fungi-
• C. Angiosperms
• D. Gymnosperms

Answer 1

The Correct Option is C

Double fertilization is a unique reproductive process found in angiosperms, where two fertilization events occur within the embryo sac. Let's explore this concept to understand why the correct answer is "Angiosperms" and rule out the other options.

1. Understanding Double Fertilization:

   In double fertilization, two sperm cells from the pollen tube enter the embryo sac. One sperm fuses with the egg cell to form a diploid zygote, and the other sperm fuses with two polar nuclei to form a triploid cell, which develops into the endosperm. This process ensures simultaneous development of the embryo and the nutritive tissue.

2. Why Angiosperms?

   Double fertilization is specifically found in angiosperms. This mechanism supports the development of seeds within fruits, a distinct feature of flowering plants. The double fertilization process is not present in any other plant groups, such as algae, fungi, or gymnosperms.

3. Eliminating Other Options:
   • Algae: Algae generally reproduce asexually or via simpler sexual reproduction that doesn't involve double fertilization.
   • Fungi: Fungi have unique reproductive strategies and do not exhibit double fertilization mechanisms.
   • Gymnosperms: Although gymnosperms possess seeds and pollen, they do not undergo double fertilization; they lack the process of forming a triploid endosperm.