Read the passage carefully and answer the questions based on the passage:

Pollen pistil interaction involves all events from the landing of pollen grains on the stigma until the pollen tube enters the embryo sac (when the pollen is compatible). When a pollen tube grows through the style and enters into the ovules, it finally discharges two male gametes in one of the synergids. Syngamy and triple fusion are two fusion events occur in angiosperms. Thus, angiosperms exhibit double fertilization. The products of these fusions are the diploid zygote and triploid primary endosperm nucleus. Zygote develops into embryo and primary endosperm cell forms the endosperm tissue. The developing embryo passes through different stages before maturation.

With reference to reproduction in flowering plants, which one of the following is incorrect?

Endospern develops into seed

The correct answer is Option (1) → Endospern develops into seed

Endosperm develops into seed.

• This is incorrect. The endosperm is a nutritive tissue that supports the development of the embryo, but it does not develop into the seed. The seed develops from the fertilized ovule (which includes the embryo and often the endosperm). The endosperm may be consumed by the embryo during development (as in dicots) or persist in the seed (as in monocots) to provide nutrition during germination, but it does not transform into the seed itself.

Ovary develops into fruit.

• This is correct. After fertilization, the ovary of the flower typically develops into the fruit.

Ploidy of PEN is 3n.

• This is correct. The Primary Endosperm Nucleus (PEN) is formed by the fusion of one sperm cell (n) with two polar nuclei (n+n) in the embryo sac. Therefore, it is triploid (3n).

Syngamy is the fusion of male and female gamete.

• This is correct. Syngamy refers to the fusion of the male gamete (sperm) with the female gamete (egg) to form the diploid zygote.