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Q Card Quiz What is……….. 1.The basic function of DNA 2.The basic structure of DNA 3.Name the four nitrogenous bases 4.Match the bases correctly.

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Presentation on theme: "Q Card Quiz What is……….. 1.The basic function of DNA 2.The basic structure of DNA 3.Name the four nitrogenous bases 4.Match the bases correctly."— Presentation transcript:

1 Q Card Quiz What is……….. 1.The basic function of DNA 2.The basic structure of DNA 3.Name the four nitrogenous bases 4.Match the bases correctly

2 The basic function of DNA --- Carries hereditary information The basic structure of DNA -- A double helix made up of nucleotides Name the four nitrogenous bases --- adenine, guanine, cytosine, thymine Match the bases correctly -- A-T --- C-G

3 Transcription- a working copy of DNA

4 Only copy one strand. Working copy of DNA leaves nucleus. Read the instructions that are coded in the sequence of base pairs Create proteins, which will create you!

5 Working copy of DNA is mRNA Whats RNA???

6 RNA- 3 differences 1.The sugar is ribose, not deoxyribose 2.RNA single stranded 3.RNA base- uracil instead of thymine

7 Transcription DNA is copied into mRNA RNA polymerase splits DNA Complimentary base pairing creates single strand of mRNA Copies a select piece of DNA-gene mRNA leaves the nucleus

8 mRNA Animation

9 DNA G C T A C C T G C A T A mRNA? C G A U G G A C G U A U

10 mRNA carries information in codons – a group of 3 nucleotides is the code for one amino acid Review- proteins are made up of amino acids.

11 Practice DNA Sequence CTGGGTAGCCTACAGTAG mRNA: GACCCAUCGG Codons- GROUP THE BASES IN 3S

12 Codons GAC-CCA-UCG-GAU-GUC-AUC 1 codon = amino acid. 64 different combinations and only 20 amino acids

13 Groups of 3 bases on mRNA code for an amino acid. A string of amino acids makes a protein, SPECIFICALLY ENZYMES ENZYMES make you!

14 Magic decoder ring

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