Question

Parthenogenic embryos in plants are those which are formed by

• A. Unfertilized eggs
• B. Fertilized eggs
• C. Sporophytic cells
• D. Male gametophyte

Hint:

Parthenogenesis allows plants to reproduce efficiently under favorable conditions without requiring fertilization from male gametes.

Answer 1

The Correct Option is A

Parthenogenesis is a form of asexual reproduction in which embryos are developed from unfertilized eggs. This process occurs without the involvement of male gametes, and the resulting embryos are typically clones of the parent plant.

(1) Parthenogenic Embryos in Plants:
- These embryos arise from eggs that have not been fertilized, and this method of reproduction can be observed in several plant species, especially in some types of algae, ferns, and flowering plants.
- The process of parthenogenesis can be triggered by environmental factors, and it allows plants to reproduce without the need for pollination or fertilization.

(2) Why Other Options Are Incorrect:
- Fertilized eggs (Option 2) are involved in sexual reproduction, not parthenogenesis.
- Sporophytic cells (Option 3) give rise to spores and are part of the plant's reproductive cycle but do not directly lead to parthenogenic embryos.
- Male gametophyte (Option 4) is the male plant reproductive structure (e.g., pollen), which is not involved in parthenogenesis.

Conclusion: Parthenogenic embryos in plants are formed by unfertilized eggs, and this form of asexual reproduction allows plants to produce offspring without fertilization.