Question

Primary endosperm nucleus is formed by the fusion of

• A. \( 2 \, \text{polar nuclei and 1 synergid cell nucleus} \)
• B. \( 1 \, \text{polar nuclei, 1 antipodal cell nucleus and 1 synergid cell nucleus} \)
• C. \( 2 \, \text{polar nuclei and 1 male gamete nucleus} \)
• D. \( 2 \, \text{antipodal cell nuclei and 1 male gamete nucleus} \)

Hint:

In the fertilization process of angiosperms, the primary endosperm nucleus is formed by the fusion of the two polar nuclei from the embryo sac with one male gamete during double fertilization.

Answer 1

The Correct Option is C

The primary endosperm nucleus is formed by the fusion of two polar nuclei with one male gamete nucleus. This fusion leads to the formation of a triploid nucleus that gives rise to the endosperm, a tissue that nourishes the developing embryo.
Thus, the correct answer is option (3) \( 2 \, \text{polar nuclei and 1 male gamete nucleus} \).