When the gametophyte is not formed by spores but by any other part of the sporophyte,it is known as

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

Which one of the following is $NOT$ a significance of polyembryony?
$i$. Polyembryony increases the chance of survival of the new plants.
$ii$. Nucellar polyembryony is greatly useful in horticulture.
$iii$. Seedless fruits are formed.
$iv$. Genetically identical plants are produced due to cleavage polyembryony.

Haploid apogamy refers to ..... .

Formation of gametophyte directly from spore mother cell without meiosis is called

Which type of apomixis is known as adventive embryony,where the embryo develops directly from the diploid cells of the nucellus or integuments?