Question

Which of the following plant parts consist of two generations-one within the other?

• A. Embryo sac inside the ovule
• B. Pollen grains inside the anther
• C. Germinated pollen grain with two male gametes
• D. Both (A) and (B)

Answer 1

The correct option is D

Both (A) and (B)

The correct option is D.

Explanation of the correct option:

1. A seed is an ovule that has matured morphologically.
2. Gymnosperms and angiosperm spermatophytes both exhibit seeds as a feature.
3. The seed essentially contains an embryo or the little future plant.
4. The anther contains pollen grains which help in pollination.
5. Pollen grains are haploid (n) and gametophyte, which are present inside the anther, that is diploid and sporophyte (2n).
6. The embryo sac is present in the ovule.
7. The embryo sac is a haploid (n) and gametophyte, which is present inside the ovule, which is diploid and sporophyte (2n).

Explanation of the incorrect option:

Option C:

Germinated pollen grain with two male gametes results in triple fusion.

Final answer: Embryo sac inside the ovule and Pollen grains inside the anther refer to the plant parts that consist of two generations-one within the other.