Pollen grains are able to withstand extremes of temperature and desiccation because their exine is com…

In case of polyembryony, if an embryo develops from the synergid and another from the nucellus which is haploid and whic…

Which one is a gametophytic polyembryony?<br> </h2></div>

The given figure shows the longitudinal section of two flowers of the same type. Study the following statements with ref…

The embryo (in dicots) undergo 2 vertical divisions.

Match the names of branches of biology listed under column I with the field of study given under column II; choose the a…

Diadelphous stamens are the characteristic feature of<br> </h2></div>

Dichogamy is</h2></div>