Plants with ovaries having only one or a few ovules are generally pollinated by _____________.</h2></div>

Pollen grain are able to tolerate extremes of temperature and desiccation because their exine consists of </…

Staminal tube is found in </h2></div>

In angiosperms, which of the following tissue is triploid?</h2></div>

What is endosperm? Describe free nuclear endosperm and cellular endosperm.</h2></div>

Coenomegaspore is involved in formation of ________ type of embryo sac.</h2></div>

Pollination in <i>Rafflesia</i> is occurred by</h2></div>

Pollination by snail and slug is known as</h2></div>