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BIOD 101 MODULE 4 studyguide: Heredity, Inheritance, Cell Cycle
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DNA Composition • DNA is often viewed in its double helix formation, which resembles that of a twisted ladder. • The ‘rungs’ of the ladder are composed of nitrogenous bases, of which there are four types: adenine (A), guanine (G), thymine (T), and cytosine (C). • Adenine and guanine a...
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