Multiple choice

The nature of the endosperm nucleus is

  1. haploid

  2. triploid

  3. diploid

  4. tetraploid
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Endosperm is formed when the two sperm nuclei inside a pollen grain reach the interior of an embryo sac or female gametophyte. One sperm nucleus fertilizes the egg, forming a zygote, while the other sperm nucleus usually fuses with the two polar nuclei at the center of the embryo sac, forming a primary endosperm cell its nucleus is often called the triple fusion nucleus resulting in a triploid of endosperm nuclues.

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