Which of the following is without exception in angiosperms?

Which of the following is without exception in angiosperms?
  1. Presence of vessels
  2. Double fertilization
  3. Secondary growth
  4. Autotrophic nutrition

Solution

Only angiosperms have double fertilization, in which the secondary nucleus forms a triploid cell to produce endosperm and the egg transforms into a diploid zygote to form embryo.

Asked in: NEET 2002

Practice more Sexual Reproduction in Flowering Plants questions on Aicharya