Ch 9 MCAT

Ch 9 MCAT - CH. 6 Bacteria typically have one chromosome...

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CH. 6 Bacteria typically have one chromosome that is circular, whereas eukaryotes have many that are linear. Chromosomes contain large amounts of different interacting proteins, which are known as histones. The appropriate decisions to enter the S phase and the M phase of the cell cycle depend on a pair of biochemicals called Cdk’s and cyclin. The molecules that make up chromosome are DNA and proteins. During mitosis and meiosis the chromatin compacts. Which of the following processes takes place more easily because of compaction? The orderly distribution of genetic material to two new nuclei. The basic structure of chromatin as sometimes been referred to as beads on a string of DNA. These beads are called nucleosomes. DNA replication occurs during the S phase. When cyclin binds Cdk, chromosomes condense. Mature nerve cells are incapable of cell division. These cells are probably in G1. A cell cycle consists of interphase and mitosis.
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Ch 9 MCAT - CH. 6 Bacteria typically have one chromosome...

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