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DNA STRUCTURE AND
FUNCTION
BIOLOGY
DNA
FUNCTION
• DNA CONTAINS THE
GENETIC INFORMATION
THAT CODES FOR THE RNA
AND PROTEINS NECESSARY
FOR CELL FUNCTION.
RNA
FUNCTION
• RNA CONTAINS THE
GENETIC
INFORMATION THAT
CODES FOR THE
PROTEINS
NECESSARY FOR
CELL FUNCTION.
DNA vs. RNA
DNA SHAPE: DOUBLE
HELIX
RNA SHAPE:
CIRCULAR
DNA vs. RNA
# OF STRANDS
• DNA: DOUBLE
STRANDED
• RNA: SINGLE
STRANDED
DNA vs. RNA
CELL TYPE
• BACTERIA CELL
• PROKARYOTIC
CELL
DNA vs. RNA
LOCATION
• DNA: MAINLY IN
NUCLEUS
• RNA: CYTOPLASM
DNA vs. RNA
NITROGENOUS BASES
• DNA: A,T,C,G
• RNA: A,U,C,G
DNA vs. RNA
BACKBONE
• DNA: PHOSPATE
AND DEOXYRIBOSE
DNA vs. RNA
CHARGAFF’S RULE
• DNA:
• RNA
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