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Chapter 20 & 22

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Chapter 20: DNA Tools and Biotechnology Overview: Human genome sequencing Completed in 2003 One method to sequence genome is where nucleotides of DNA strand are passed through pores in membrane and changes in electrical current are used to determine nucleotide sequence DNA technology Used to sequence and manipulate DNA and find out how they affect gene expression Biotechnology Manipulation of organisms or components to make useful products 20.1: DNA sequencing and DNA cloning are valuable tools for genetic engineering and biological inquiry Nucleic acid hybridization Base pairing of one strand of nucleic acid to complementary sequence on another nucleic acid molecule Genetic Engineering Direct manipulation of gene for practical purposes DNA sequencing

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