Oogenesis
The formation of the ovum (mature female gamete) from undifferentiated germ cells is called oogenesis. This process takes place in the ovaries (female gonads). Oogenesis consists of three stages known as the multiplication phase, growth phase, and maturation phase.
Cell Division
Cell division involves the formation of new daughter cells from the parent cells. It is a part of the cell cycle that takes place in both prokaryotic and eukaryotic organisms. Cell division is required for three main reasons:
DNA is the genetic material in living organisms that remains in chromosome form in eukaryotic cells within the nucleus of the cell. Actually the chromosome shape is observed during the mitotic phase of a cell cycle in which chromatin fibres condense. Chromosomes contain two arms that are p-arm (small) and q-arm (large), depending on the location of the centromere in the chromosome.
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