Question

Double fertilization process means _____________________.

• A. Fusion of one male gamete nucleus with egg nucleus while fusion of other male gamete nucleus with secondary nucleus
• B. Fusion of male gamete nucleus with secondary nucleus
• C. Fusion of two polar nuclei with each other
• D. Fusion of male gamete nucleus with egg nucleus

Answer 1

The correct option is A Fusion of one male gamete nucleus with egg nucleus while fusion of other male gamete nucleus with secondary nucleus

• After pollen grain land on a proper stigma. It absorbs water and germinates by producing a pollen tube.
• There are two sperm cell within pollen tube.
• One sperm fertilizes the egg to form a zygote while other sperm cell fuses with two polar nuclei (secondary nucleus).
• The combination of the two sperm cells with different nuclei of the female gametophyte is denoted as double fertilization.

So, the correct option is A.