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Maturation promoting factor

AP Bio Lab 7

Subject: 
Biology
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cell cycle
mitosis
Interphase
Meiosis
Cyclin
Cytokinesis
Spindle checkpoint
Kinetochore
Metaphase
Telophase
G1 phase
Maturation promoting factor

AP LAB 7: CELL DIVISION: MITOSIS AND MEIOSIS How do eukaryotic cells divide to produce genetically identical cells or to produce gametes with half the normal DNA? BACKGROUND One of the characteristics of living things is the ability to replicate and pass on genetic information to the next generation. Cell division in individual bacteria and archaea usually occurs by binary fission. Mitochondria and chloroplasts also replicate by binary fission, which is evidence of the evolutionary relationship between these organelles and prokaryotes. Cell division in eukaryotes is more complex. It requires the cell to manage a complicated process of duplicating the nucleus, other organelles, and multiple chromosomes. This process, called the cell cycle, is divided

Regulation of the cell cycle

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Biology
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Biology
cell cycle
Cyclin
Maturation promoting factor
G1 phase
G2 phase
Cell growth
G0 phase
S phase
Biochemical switches in the cell cycle
G1 and G1/S cyclins- budding yeast
health

Cell Cycle Regulation Cell cycle control systems The frequency of cell division varies with the type of cell Caused by the difference in regulation at the molecular level The stages of the cell cycle are regulated by a distinct cell cycle control system (similar to a clock) The cell cycle control system is regulated by both internal and external controls The clock has specific checkpoints where the cell cycle stops until a go-ahead signal is received Cell cycle control systems: interphase and mitosis Interphase Makes up about 90% of the cell cycle: can be divided into subphases: G1 phase (?first gap?) S phase (?synthesis?) G2 phase (?second gap?) The cell grows during all three phases Chromosomes are only duplicated during the S phase
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