Biology 1201 Notes for 3rd Exam

Biology 1201 Notes for 3rd Exam - Biology 1201 Notes for...

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Biology 1201 Notes for 3 rd Exam (Began March 3, 2009) Growth and repair: How do cells reproduce?. .. Cells need to possess the genetic material characteristic of the organism Genetic material is DNA The “daughter” cells need the complete genetic complement CLICKER : The genetic material of Prokaryotes is: Circular DNA Prokaryotes Circular strands of DNA Replicate the DNA and pass it on to the “daughter” cells Divide by binary fission Fig. 12.11 -Bacterial cell division (binary fission) Eukaryotes A problem Genetic material is found in linear chromosomes o Linear strands of DNA complexed with proteins o Multiple chromosomes (e.g., humans 46) How to insure that each daughter cell gets the complete set of chromosomes? How do you get identical daughter cells? Need a mechanism to allow each daughter cell to have a copy of each chromosome The solution A process call mitosis Cell Division: Mitosis Reproduction Growth Repair Produce “daughter” cells that have identical genetic complements
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Biology 1201 Notes for 3rd Exam - Biology 1201 Notes for...

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