STD 12 - 5. molecular basis of inheritance — BIOLOGY STD 12 Science — Question

$(i)$ The gynoecium represents the female reproductive part of the flower

$(ii)$ Ovule is located in Anther

$(iii)$ Each pistil has three parts the stigma, style, and ovary

$(iv)$ The upper most part of gynoecium is Anther

$I$. Each cell of sporogenous tissue in anther is capable of giving rise to microspore tetrad.
$II$. The pollen grain represent male gametophyte.
$III$. Pollen grains are usually triangular and $10-15 \mu m$ in diameter.
$IV$. Sporopollenin is one of the most resistance organic material which can be destroyed only by strong acids
and alkali.