A spider mite has 5 pairs of chromosomes, please draw what the indicated stage would look like and state how many individual chromosomal structures and DNA molecules will be present in each cell. a. After S phase is complete b. Metaphase of mitosis c. Prophase of meiosis II d. After cytokinesis of meiosis II e. Finally, explain why crossing over is only effective if it occurs between homologous chromosomes and not sister chromatids.
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:
A spider mite has 5 pairs of chromosomes, please draw what the indicated stage would look like and state how many individual chromosomal structures and DNA molecules will be present in each cell.
a. After S phase is complete
b. Metaphase of mitosis
c. Prophase of meiosis II
d. After cytokinesis of meiosis II
e. Finally, explain why crossing over is only effective if it occurs between homologous chromosomes and not sister chromatids.
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