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Meiosis and Mitosis
Transcript of Meiosis and Mitosis
Chromosomes line up in the middle of the cell
Crossovers happen- Parts of one of the chromosomes may interchange with another part of another chromosome
Spindle fibers attach For Both:
The chromatin combine to form chromosomes
Spindle fibers begin to form Metaphase Chromosomes line up in the middle of the cell
Spindle fibers attach Spindle Fibers Anaphase 1 Anaphase They always line up in a different order (Eg. 2 male Chromosome pairs/ 1 Male 1 Female Chromosome Pairs)
This helps ensure genetic diversity
The Chromosomes are pulled apart to the opposite ends of the cell The Chromosomes are spilt aprt and each end is pulled apart to the opposite ends of the cell Telophase 1 Telophase & The cell begins to divide into to and the nucleolus begins to form Cytokinesis 1 The diploid cell completely separated and became two haploid cells Cytokinesis The one cell has now separated into two cells
This is the end of Mitosis Prophase 2
Nucleolus dissipates again
Spindle fibers begin to reform Metaphase 2 Chromosomes line up in the middle of the cell
Spindle fibers reattach Anaphase 2 Again, the Chromosomes are spilt aprt and each end is pulled apart to the opposite ends of the cell Telophase 2 The cell begins to divide into to and the nucleolus begins to reform Cytokinesis 2 The two haploid cells separate into four haploid cells This is the end of Meiosis Thank You For watching!