Question

multiple choice 2 points
in the image of double - fertilization below, the two cells labeled a are ______

Explanation:

In plant double - fertilization, the embryo sac contains several cell types. The cells labeled A in the embryo sac are polar nuclei. During double - fertilization, one sperm fuses with the egg to form a zygote and the other sperm fuses with the two polar nuclei to form the endosperm nucleus.

Answer:

Polar nuclei