Lect3BB08F notes

Lect3BB08F notes - Intro to Biotech Lect.3...

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Traits can be transferred : Streptococcus pneumonia nonvirulent virulent Intro to Biotech Lect. 3 What is the composition of a gene? What is the chemical nature of this heritable change ? How can we determine what a gene is? 1944 Avery - experimental system?
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• 1944 Avery - experimental system? What is the composition of a gene? “.... it takes alot of. ..evidence to convince anyone that the sodium salt of deoxyribonucleic acid could possibly be endowed with such biologically active and specific properties,” 1. 2. 3. 4. 5. Take home = Gene comprised of DNA Intro to Biotech Lect. 3
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What is DNA? DNA - “deoxyribonucleic acid” 1. 2. 3. nitrogenous base a. b. 4. 5. Phosphodiester linkage 6. 7. A T, C G 8. Chargaff’s rules Why weak bonds? (H only 3% strength of covalent) 1. 2. Lect.2 Intro to Biotech Lect. 3
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Does DNA structure fulfill requirements ? 1. faithful replication
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Lect3BB08F notes - Intro to Biotech Lect.3...

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