Which is the most common type of embryo sac in angiosperms ?
An orthotropous ovule is one in which micropyle and chalaza are
In angiosperms, microsporogenesis and mega sporogenesis
Draw the diagram of a mature embryo sac and show its $8-$ nucleate, $7-$ celled nature. Show the following parts : antipodals, synergids, egg, central cell, polar nuclei.
$A$ - Due to meiosis is $MMC$, microspore tetrads produce
$R$ - $MMC$ is a large cell containing dense cytoplasm and a prominent nucleus