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Chapter 20 DNA Technology and Genomics

Chapter 20 DNA Technology and Genomics - Chapter 20 DNA...

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2/11/14 7:37 PM Chapter 20 DNA Technology and Genomics Page 1 of 4 http://pages.cabrini.edu/ddunbar/BIO%20102/chapter_20__dna_technology_and_genomics.htm [ Home ] Chapter 20 DNA Technology and Genomics Figure 20.0 DNA sequencers DNA sequencers are used to sequence an organism’s genome and pieces of DNA. Genome = All of the DNA base pairs that makes up an organism’s chromosomes. Therefore sequencing an organism’s genome tells one where all the genes are located that make up an organism. Table 20.1. Genome sizes and number of genes in model organisms. Human Genome Contains only 2-3 times more genes than the number of genes in a fruit fly or the round worm C. elegans. Figure 20.1 A DNA microarray.
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2/11/14 7:37 PM Chapter 20 DNA Technology and Genomics Page 2 of 4 http://pages.cabrini.edu/ddunbar/BIO%20102/chapter_20__dna_technology_and_genomics.htm A DNA microarray reveals the expression levels on a genome wide scale. Figure 20.1 indicates the expression levels of 2,400 human genes.
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