$A$ – Due to meiosis is $MMC$, microspore tetrads produce

$R$ – $MMC$ is a large cell containing dense cytoplasm and a prominent nucleus

Egg apparatus of angiosperm consists of

A pollen tube grows down the style because

With a neat, labelled diagram, describe the parts of a mature angiosperm embryo sac. Mention the role of synergids.

$A$- Four cells are at the chalzal end and are called the antipodals.

$R -$ A typical angiosperm embryo sac, at maturity,though $8$-nucleate is $7$-celled