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Information molecules

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Presentation on theme: "Information molecules"— Presentation transcript:

1 Information molecules
Nucleic acids: Information molecules

2 Nucleic Acids Examples DNA RNA DeoxyriboNucleic Acid RiboNucleic Acid

3 Nucleic Acids Function: genetic material stores information
genes blueprint for building proteins transfers information blueprint for new cells blueprint for next generation DNA proteins

4 Genes (DNA) are needed to run bodies every day…
C G Genes (DNA) are needed to run bodies every day… to make you and me… to make new cells… to make babies!

5 Nucleic acids 5 different nucleotides Building block = nucleotides
nucleotide – nucleotide – nucleotide – nucleotide 5 different nucleotides different nitrogen bases A, T, C, G, U Nitrogen bases I’m the A,T,C,G or U part! phosphate sugar N base

6 Nucleotide chains Nucleic acids nucleotides chained into a polymer DNA
phosphate sugar N base Nucleotide chains Nucleic acids nucleotides chained into a polymer DNA double-sided double helix RNA single-sided Stores and transfers DNA info phosphate sugar N base strong bonds phosphate sugar N base phosphate sugar N base RNA

7 DNA Double strand twists into a double helix
weak bonds between nitrogen bases join the 2 strands the two strands can separate when our cells need to make copies of it weak bonds It’s a helix or B sheet within a single region. Can have both in one protein but a specific region is one or another

8 Newly copied strands of DNA
DNA replication Copying DNA pairing of the bases allows each strand to serve as a pattern for a new strand The greatest understatement in biology! Newly copied strands of DNA


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