Majority of pollen grains are shed at
$1-celled stage$
$2-celled stage$
$3-celled stage$
$5-celled stage$
The diagram below is a longitudinal section of an ovule of an angiospermWith which of the following structures do the contents of one pollen tube fuse with
In sausage tree (Kigelia africana) the pollination takes place by
Branched type of pollen tube is formed in
Ovule of Capsella is
Fillform apparatas is a feature of