genesdouble helixnitrogen base, sugar, and phosphate groupDNAreplicationRNAtwo identical strands of DNAreason 1: DNA double-stranded,
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RNA single-stranded
reason 2: RNA has uracil instead of thymine
reason 3: RNA has ribose instead of deoxyribose
type 1 - messenger (mRNA)
type 2 - transfer (tRNA)
type 3 - ribosomal (rRNA)
Mutation
type 1 - substitution
type 2 - insertion
type 3 - deletion
proteins and DNA
Adenine
Cytosine
TACCG
alternating sugar and phosphates
pairs of nitrogen bases
so each
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