Wind pollinated flowers are
small, brightly coloured, producing large number of pollen grains
small, producing large number of dry pollen grains
large producing abundant nectar and pollen
small, producing nectar and dry pollen.
Which one of the following is surrounded by a callose wall?
Apogamy is
The megaspore mother cell divides meiotically forming haploid embryo sac and the plants thus formed are usually sterile in
Filiform apparatus is characteristic feature of
In angiosperms, the megaspore develops into