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Genetics Continued
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Mutations Two Types –Changes in a single gene-gene mutation Point mutation Frameshift mutation –Mutation that causes changes in whole chromosomes- chromosomal mutations Deletion Duplication Inversion Translocation
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Gene Regulation Operons- group of genes that operate together Operator -a region to which a repressor can bind,preventing transcription of the genes Biology corner Site
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Development and Differentiation Once an egg is formed there are only a few divisions then the cells will start to become specialized (hence the importance of stem cells) this process is called -differentiation these are controlled by a series of cells called the hox genes. –hox genes tell the body how the cells should differentiate as the body grows. Mouse gene in knee of fruit fly the fly grew a eye on its leg –If a mutation in one of these master control genes can completely change the organs that developchange
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Selective breeding Breeding traits that you want to keep –Hybridization Crossing dissimilar individual –Inbreeding Breeding back into the same population.. –What problems might there be
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Increasing Variation Bacteria –radiation Plant –Ex. Polyploidy
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Manipulating DNA Genetic engineering –DNA extraction –Cutting DNA –Separating DNA –HomeworkHomework
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Using the DNA sequence Reading the sequence Cutting and pasting Making copies
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Cell Transformation Transforming Bacteria –Plasmid –Genetic marker Transforming Plant and Animal cells
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Application of Genetic Engineering Transgenic Organisms Cloning
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Great sites to help you Who is the parent?Who is the parent Catch the bad guy Electrophoresis Good moviesmovies More linkslinks Good overall reviewreview
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