Transfer of pollen grains from the anther to the stigma of another flower of the same plant is called

Which plant will lose its economic value, if its fruits are produced by induced parthenocarpy

If a sporangium is derived from a single cell, it is called

Proteinaceous endosperm of maize is called

$A$ : In sporoderm, pectocellulosic layer is surrounded by sporopollenin.
$R$ : Exine is differentiated into outer ektexine and inner endexine.