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:
The cell is the basic structural and functional unit of the body. The chromosomal theory of inheritance states the two important processes related to the behaviors or chromosomes and genes in the cell. They are mitosis and meiosis. The process in which the cell undergoes two divisions of the diploid nucleus following one division of chromosome is called meiosis. It produces haploid gametes in humans.
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