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Nucleic acids:. Information molecules. Nucleic Acids . Examples DNA DeoxyriboNucleic Acid RNA RiboNucleic Acid. RNA. proteins. DNA. Nucleic Acids. Function: genetic material stores information genes blueprint for building proteins DNA  RNA  proteins transfers information

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nucleic acids

Nucleic acids:

Information molecules

nucleic acids1
Nucleic Acids

Examples

  • DNA
    • DeoxyriboNucleic Acid
  • RNA
    • RiboNucleic Acid

RNA

nucleic acids2

proteins

DNA

Nucleic Acids
  • Function:
    • genetic material
      • stores information
        • genes
        • blueprint for building proteins
          • DNA  RNA  proteins
      • transfers information
        • blueprint for new cells
        • blueprint for next generation
slide4

T

G

A

C

T

A

C

A

G

G

A

T

C

Genes (DNA)are needed to run bodies every day…

to make you and me…to make new cells…

to make babies!

nucleic acids3

sugar

N base

phosphate

Nucleic acids
  • Building block =

nucleotides

nucleotide – nucleotide – nucleotide – nucleotide

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

Nitrogen basesI’m the A,T,C,G or Upart!

nucleotide chains

sugar

sugar

sugar

sugar

N base

N base

N base

N base

phosphate

phosphate

phosphate

phosphate

Nucleotide chains
  • Nucleic acids
    • nucleotides chained into a polymer
      • DNA
        • double-sided
        • double helix
        • A, C, G, T
      • RNA
        • single-sided
        • A, C, G, U

strong bonds

RNA

slide7
DNA
  • Double strand twists into a double helix
    • weak bonds 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

weak bonds

copying dna
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
slide9

DNA replication

  • Copying DNA
    • pairing of the bases allows each strand to serve as a pattern for a new strand

Newly copied strands of DNA

slide11

HELIXHELIX

Let’s build some

DNA!