Question

Which of the following is without exception in
angiosperms?
(a) Presence of vessels
(b) Double fertilisation
(c) Secondary growth
(d) Autotrophic nutrition

Answer 1

Answer:

Double fertilization is a characteristic feature of angiosperms. In this process of double fertilization, both diploid zygote and triploid endosperm are formed.

Double fertilization involves two sperm cells; one fertilizes the egg cell to form the zygote, while the other fuses with the two polar nuclei that form the endosperm.