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

The formation of an embryo without the fusion of gametes is termed as:

Despite a high level of heterozygosity,the progeny derived from the seed of a cross-pollinated plant was found to be completely uniform. One reason for this may be the phenomenon of:

What is polyembryony and how can it be commercially exploited?

$A$: Multiplication occurs rapidly with equal rate in apomixis as well as in amphimixis.
$R$: Both types show mitotic as well as meiotic division.

The presence of many embryos (Polyembryony) is a characteristic feature of: