Question

PEN stands for

• A. Primary endosperm nourishment
• B. Primary endosperm nucleus
• C. Primary embryo nourishment
• D. Poly embryo nourishment

Answer 1

The correct option is B Primary endosperm nucleus

PEN stands for Primary Endosperm Nucleus. PEN is formed during triple fusion when the male gamete fuses with the diploid secondary nucleus resulting in the formation of a triploid primary endosperm mother cell in which the triploid primary endosperm nucleus is present. PEN develops into endosperm.

So, the correct answer is B.