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Unformatted text preview: DNA: The Carrier of Genetic Information Evidence of DNA as the Hereditary Material Virulence- ability to cause disease and even death Avirulence- inability to produce pathogenic effects Transformation- Permanent genetic change in which the properties of one strain of dead cells are conferred on a different strain on living cells Bacteriophages- viruses that infect bacteria Structure of DNA Template- pattern or guide, DNA is its own template Each DNA building block is a nucleotide consisting of the pentose sugar deoxyribose Bases- purines adenine (A) and guanine (G) , and two pyrimidines, thymine (T) and cytosine (C) Phosphodiester linkage- 3 carbon of one sugar bonds to 5 phosphate of adjacent sugar to form 3 5 linkage 5 end- 5 carbon attached to a phosphate 3 end- 3 carbon attached to a hydroxyl group Chargaffs rules- ratio of 1:1 in DNA, pyrimidines: purines, A:T, G:C...
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