Multiple choice

The endosperm of Brassica campestris is

  1. haploid

  2. diploid

  3. triploid

  4. tetraploid

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In Brassica campestris (mustard plant) and most angiosperms, the endosperm is triploid (3n). This results from double fertilization, where one sperm fertilizes the egg (forming a 2n zygote) and the second sperm fuses with the two polar nuclei (each n), creating a 3n endosperm that provides nutrition to the developing embryo.