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CHAPTER 7-8 [AHL] (NUCLEIC ACIDS [AHL] (7.1 DNA STRUCTURE &…
CHAPTER 7-8 [AHL]
NUCLEIC ACIDS [AHL]
7.1 DNA STRUCTURE & REPLICATION
The Hershey-chase experiment
summary
How it suggested semi-conservative replication?
STRUCTURE
nucleosome
eukaryotic DNA is associated with histone while prokaryotic DNA is NOT(naked)
histone package the DNA into nucleosome
REPLICATION
leading strand
continuous(3'---5')
proteins involved in replication
direction of replication(3' to 5')
lagging strand
discontinuous (5'---3')
non-coding regions
7.2 TRANSCRIPTION & GENE EXPRESSION
regulation of gene expression by proteins
7.3 TRANSLATION
METABOLISM, CELL RESPIRATION AND PHOTOSYNTHESIS [AHL]