ISB Lecture 6 - ISB Lecture 6 Mitosis Machinery Muck-up:...

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ISB Lecture 6 24/01/2008 10:29:00 Mitosis Machinery Muck-up: Cancer and Chemotherapy All cells divide- mitosis Cancer in the USA There are 487 types, and these are invasive cancers 487 incidencies per ever 100,000 people we estimate 487 incidences per 100,000 people if the population of the US is 300 million …1,460,000 diagnosed with cancer  every year 2 nd  leading cause of death 1 in every 4 deaths is caused by cancer every year 560,00 people wil die more than 10,000,000 people are living with, or have had, cancer approx 57 people in our class have, or will have cancer What is cancer? What happens in our bodies that causes us to get this disease? How is cancer treated? How can we find a cure?  Cell Reproduction: Mitosis Cells reproduce by dividing into two new daughter cells This process of division is called Mitosis During this process, an exact copy of the cell DNA is made
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This cycle is controlled by proteins coded in DNA of the cell Prokaryotes have their own system called “binary fission” Prokaryotes (like bacteria_ have simple, circular piece of DNA No nucleus Much simpler ell cycle than Eukaryotes (protests, fungi, plants and animals) Bacterium undergoing binary fission. New cell membrane forms and “pinches”  the cell in half, with one complete copy of DNA in each new daughter cell IN the process of replicating each daughter has one copy from the parent cell  and a replicate “photo copied” copied Eukaryoties have a more complex cell cycle Main Stages of Cell Cycle
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ISB Lecture 6 - ISB Lecture 6 Mitosis Machinery Muck-up:...

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