Question

Identify the correct labellings in the figure of a fertilised embryo sac of an angiosperm given below:

• A. A – zygote, B – degenerating synergids, C – degenerating antipodals, D – PEN
• B. A – degenerating synergids, B – zygote, C – PEN, D – degenerating antipodals
• C. A – degenerating antipodals, B – PEN, C – degenerating synergids, D – zygote
• D. A – degenerating synergids, B – zygote, C – degenerating antipodals, D – PEN

Hint:

In a fertilized embryo sac, unused cells like synergids and antipodals degenerate, while the zygote and PEN develop further.

Answer 1

The Correct Option is B

Labeled components of the fertilized embryo sac:
- A: Degenerating synergids, non-functional post-fertilization.
- B: Zygote, formed from male and female gamete fusion.
- C: Primary Endosperm Nucleus (PEN), develops into nourishing endosperm.
- D: Degenerating antipodal cells, irrelevant after fertilization.