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:
QUESTION 35
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What event occurs to divide the sister cells in two during cytokinesis?
A. Constriction of the cell body by the sliding of myosin filaments on actin filaments.
B. Contraction of the cell body by the shortening of actin and myosin filaments.
C. Contraction of the cell body by shortening of the microtubules.
D. Dissolving of the cytoplasm at the center of the cell body followed by
polymerization of new actin filaments.
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