Double fertilization was discovered by

Double fertilisation results in the production of

The genotype of the endosperm is $ZZA$. Find out the genotype of the male and female plant,respectively.

Explain why sexual reproduction in angiosperms is said to take place through double fertilization and triple fusion? Also,provide a labelled diagram of the embryo sac to explain the phenomenon.

In angiosperms, the fusion of a male gamete with the secondary nucleus is considered as "second fertilization" because

Triple fusion in angiosperms is the fusion of the second sperm with: