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Nucleic Acids Examples

DNA DeoxyriboNucleic Acid

RNA RiboNucleic Acid

ATP Adenosine TriPhosphate

DNADouble Helix

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Nucleic Acids Function:

genetic material stores information

genesblueprint for building proteins

DNA RNA proteins

(protein Synthesis)

transfers informationblueprint for new cellsblueprint for next generationReproduction

chromosomes

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nucleotide

nucleicacid

genes(bands)

chromosome

nucleus inthe cell

SmallestTo

Largest

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Nucleic acids Building block = nucleotides (monomer)

5 different nucleotides different nitrogen bases A, T, C, G, U

nucleotide – nucleotide – nucleotide – nucleotide

Phosphate

PO4

Sugar-ose

N base

Nitrogen basesI’m the

A,T,C,G or Upart!

one strand

DNA – deoxyriboseRNA and ATP - ribose

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Nucleotide chains Nucleic acids

nucleotides chained into a polymer DNA

double-sideddouble helixA, C, G, T

RNAsingle-sidedA, C, G, U

phosphate

sugar N base

phosphate

sugar N base

phosphate

sugar N base

phosphate

sugar N base

strong bonds

sugar-phosphate backbone

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DNA Double strand twists into a double helix

weak bonds – hydrogen bonds form between nitrogen bases join the 2 strands A pairs with T

A :: T C pairs with G

C :: G the two strands can separate when our cells need to make copies of it – need enzymes and ATP

weak bondsshown as

dotted lines

complementary bases “fit” together

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Copying DNA Replication

copy DNA 2 strands of DNA helix are

complementary they are matching have one, can build other have one, can rebuild the whole

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Watson and Crick … and others…1953 | 1962