Definations / Explanation :
$1.$ Geitonogamy
$2.$ Coleorrhiza
Geitonogamy - Transfer of pollen grains from the anther to the stigma of another flower of the same plant. Although geitonogamy is functionally cross-pollination involving a pollinating agent, genetically it is similar to autogamy since the pollen grains come from the same plant.
At its lower end, the embryonal axis has the radical and root cap enclosed in an undifferentiated sheath called coleorrhiza.
Differentiate between microsporogenesis and megasporogenesis. Which type of cell division occurs during these events? Name the structures formed at the end of these two events.
Delete odd one
Match the following:
Column $- I$ | Column $- II$ |
$(1)$ Germ pore | $(a)$ Lack of sporopollenin |
$(2)$ Parthenium | $(b)$ Malva |
$(3)$ Self incompatibility | $(c)$ Palms |
$(d)$ Contaminant with important wheat |
Product of sexual reproduction generally generates
Give differences : Anther and Ovary