Question

Double fertilization and triple fusion are the two terms associated with angiosperm fertilization.

a) What is double fertilization?

b) Explain triple fusion.

c) Give the ploidy level of

i) endosperm

ii) zygote

Answer 1

(a) It is the fertilization take place in two times. It involves syngamy and triple fusion.

(b) It is the fusion of two polar nuclei and male gametes and results primary endosperm nucleus (PEN)

(c) (i) endosperm – 3n

(ii) zygote-2n