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CHAPTER 4: Expression Of Biological Information (6 Hours)

CHAPTER 4: EXPRESSION OF BIOLOGICAL INFORMATION ,[object Object],[object Object],[object Object],[object Object],[object Object]

4.1 DNA & Genetic Information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

4.1: DNA Structure- Watson & Crick Model ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],DNA Structure

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Adenine = Thymine Guanine = Cytosine

DNA structure – Watson & Crick Model (Nobel Laureate) ,[object Object],[object Object],[object Object]

Nucleotide Basic Structure O CH 2 Base O P OH O OH OH 1 2 3’ 4 5’ ,[object Object],[object Object],[object Object]

DNA DNA molecule structure 5` phosphodiester linkage Hydrogen bond o P o P o P o P P o P o P o P o C T G A A T G C 5` 3` 3` Hydrogen bond

DNA as the carrier of genetic information ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Wild type S mooth, virulent ( IIIS ) Mutant type R ough, non-virulent ( IIR ) Symbol of bacteria

[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Controls Living S (smooth) cells + mouse = mouse dead Living R (rough) cells + mouse = mouse healthy Heat-killed S cells + mouse = mouse healthy Combinations Heat-killed S cells + Living R cells + mouse = mouse dead

[object Object],The Avery et. al. Experiment

Experiments carried out by Avery et. al.

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