Biology 1201A Chapter Notes - Chapter 8: Prometaphase, Tubulin, Telophase

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Meiosis is the division of diploid cells into haploid cells, consisting of two rounds of replication. 1 diploid cell splits into 4 haploid cells. Mitosis is the division of a diploid cell into two identical daughter cells that are exact genetic copies of the parent. 1 diploid cell splits into 2 diploid cells. B period: a bacterial cell before its dna replicates. C period: replication begins at a replication origin and proceeds in both directions. Replication takes place in the middle of the cell when dna replication enzymes are located: the two replicated origins migrate to the poles of the cell while replication continues. Cell division begins as the plasma membrane grows inward, and a new cell wall is synthesized: binary fission produces two daughter cells. This mechanism works well for prokaryotes because most prokaryotic organisms only have a single chromosome. Therefore if the daughter cell only receives at least one copy of the chromosome its genetic information is complete.

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