Compare and contrast mitosis and meiosis with at least 5 descriptors of each. Explain how meiosis leads to genetic diversity. Why is genetic diversity important?
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:
Compare and contrast mitosis and meiosis with at least 5 descriptors of each. Explain how meiosis leads to genetic diversity. Why is genetic diversity important?
Meiosis
Meiosis is a type of cell division that results in the formation of four daughter cells each with half the number of chromosomes as the parent cell.
Interphase- Chromosomes not yet visible but DNA has been duplicated or replicated.
Prophase I – crossing-over recombination – Homologous chromosomes (each consists of two sister chromatids) appear together as pairs. Tetrad is the structure that is formed. Segments of chromosomes are exchanged between non-sister chromatids at crossover points known as chiasmata (crossing-over).
Metaphase I Chromosomes adjust on the metaphase plate. Chromosomes are still intact and arranged as pairs of homologs.
mode of reproduction Asexual Reproduction.
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