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BIOL 243 (36)
Lecture

Theme 3 Topics 1-2: DNA as an information molecule, DNA Str..
Theme 3 Topics 1-2: DNA as an information molecule, DNA Structure

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School
University of Calgary
Department
Biology
Course
BIOL 243
Professor
Heather Addy
Semester
Winter

Description
Theme 3 Topics 1 and 2Genotype entire DNA sequence that is inherited from parents to progeny and contains all the biological information needed to build and maintain a living organism Phenotype body plan behavior metabolism etcProteins determine the phenotype y Enzymes catalyze synthesis and transformation of biomolecules y Structural proteins maintain cell shape y Signaling proteins hormones and receptorsEvidence that DNA is the hereditary molecule Griffith Avery et al Experiment genetic transformationsomething from killed infective bacteria could transform noninfective living bacteria to be infective no transformation when DNA is destroyed thus DNA is the transformation molecule Hershey and Chase Viruses infect bacteria with DNA not proteinDNA 1 Pentose Sugar Carbons labeled 1 to 5 2 Nitrogenous bases Purines two rings Guan
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