MAKE CONNECTIONS Look at Figure 12.7 and imagine the twodaughter cells undergoing another round of mitosis, yielding four cells.Compare the number of chromosomes in each of those four cells, aftermitosis, with the number in each cell in Figure 13.8, after meiosis. Whatis it about the process of meiosis that accounts for this difference, eventhough meiosis also includes two cell divisions?
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:
MAKE CONNECTIONS Look at Figure 12.7 and imagine the two
daughter cells undergoing another round of mitosis, yielding four cells.
Compare the number of chromosomes in each of those four cells, after
mitosis, with the number in each cell in Figure 13.8, after meiosis. What
is it about the process of meiosis that accounts for this difference, even
though meiosis also includes two cell divisions?
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