Megaspores are produced from the megaspore mother cells after
mitotic division
formation of thick wall
differentiation
meiotic division.
The body of the ovule is fused within the funicle at
In angiosperms, the following events occur during megasporogenesis and megagametogenesis
$(i)$ Differentiation of megaspore mother cells
$(ii)$ Meiosis of the megaspore mother cell
$(iii)$ Formation of a linear tetrad
$(iv)$ Mitotic division of the functional megaspore
$(v)$ Degeneration of 3 megaspores
$(vi)$ Formation of embryo sac
$(vii)$ Fusion of polar nuclei
The correct sequence is
$A$ - Due to meiosis is $MMC$, microspore tetrads produce
$R$ - $MMC$ is a large cell containing dense cytoplasm and a prominent nucleus