In $Taraxacum$,the unreduced embryo sac is derived from . . . . . . .

The development of an embryo from an egg without fertilization is called........

Can an unfertilised,apomictic embryo sac give rise to a diploid embryo? If yes,then how?

Nowadays,agricultural practice is expensive for farmers as they need to purchase hybrid seeds every year. Which of the following strategies can be employed to overcome this problem?

In $Citrus$,adventive polyembryony arises due to the development of embryos from:

Nuclear polyembryony is found in