You observe a cell that is in prophase II of meiosis. You count 18 chromosomes, 36 chromatids and 36 DNA molecules. Answer the following questions: (a) What is the diploid number of the original parental cell? Explain your reasonings. (b) What will be the haploid number in the resulting gamete at the end of meiosis? Explain your reasoning.

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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: