DNA DNA→RNA→Protein.

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Presentation transcript:

DNA DNA→RNA→Protein

Nucleotides Nucleotides are the pieces of DNA (monomer) Each nucleotide has: A backbone of a 5 Carbon Sugar (Deoxyribose) and a phosphate Nitrogen bases: Adenine, Guanine, Cytosine, Thymine

Double Helix These nucleotides come together by base pairing with the nitrogen bases Adenine to Thymine with a hydrogen bond Guanine to Cytosine with a hydrogen bond

DNA’s Function Holds the genetic information of the organism, that allows the Ribosomes to make protein specifically for that organism. ½ from mom, ½ from dad.

What about mRNA? RNA is a disposable copy of DNA used to make proteins Why is it called RNA and not DNA? It has a different sugar called Ribose instead of Deoxyribose

Differences in DNA & mRNA 1- sugar is ribose not deoxyribose 2- RNA is single-stranded 3- RNA has a nitrogen base of Uracil not Thymine. What would Uracil bond to then?

So What? Why do we care about base pairs? Well, for every 3 bases it codes for a certain protein to be made.

Mutations http://io9.com/10-unusual-genetic-mutations-in-humans-470843733

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