Biology 1201A Lecture 8: Mitosis
16 Oct 2018
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Binary fission - bacteria and archaea (no nucleus, circular chromosomes) C - 2 circles of chromosomes separate to opposite ends. End of d - 2 daughter cells are made. In bacterial cell plasmid is smaller circular chromosomes. The way new cells get their plasmid in replication is by going through a little tube of connection to the other cell and the dna transfers through the tube while replicating. Transfer may not be to same species of bacteria. Cytokinesis - division of whole cell (but cytokinesis starts in llate anaphase and telophase of mitosis) It doesn"t matter what the ploidy of the cell, it"ll go through this division process (for somatic cells not germ-line) Kinetochore is the protein that binds to centromere and is where microtubules attach to. Motor proteins push and pull kinetochores to move the chromosomes, pulling chromosomes toward the cell poles.
