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HU: Frankel

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer (1)
Answer (2)
triplet code   proven when you add three more codons and the reading form is still unaltered   N/A  
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frame-shift mutation   a genetic mutation caused by the insertion or deletion of number of nucleotides that is not evenly divisible by three   N/A  
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degenerate code   when majority of amino acids can have more than one codon   N/A  
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What does it mean for a genetic code to NOT be ambiguous?   any given codon only codes for ONE amino acid   N/A  
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What did Nirenberg discover?   a cell-free synthesizing system using Poly-U   N/A  
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Poly-U   only base is uracil   codes for phenylalanine  
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How many codons are amino acids?   61 out of 64   N/A  
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"3 nonsense codons"   serve as terminator codons   UAA, UAG, UGA  
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What is the most common initiator codon?   AUG   N/A  
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What is the Shine-Delgarno sequence and where is it located?   allows messenger to get affixed to the ribosome   upstream five prime to the starting codon  
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In prokaryotes, what does the starting codon "AUG" code for?   N-formylmethionine   N/A  
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kozak consensus sequence   place where ribosome can attach to messenger without being in the actual sequence   N/A  
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In prokaryotes what does the starting codon "GUG" code for?   N-formylmethionine   N/A  
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amino acid for "UUU"   phenylalanine   N/A  
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amino acid for "AAA"   lyscine   N/A  
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amino acid for "CCC"   proline   N/A  
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amino acid for "GGG"   glycine   N/A  
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amino acid for "AUG"   methionine   N/A  
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amino acid for "GUG"   valine   N/A  
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"wobble"   miss pairing between an anti-codon and a codon   N/A  
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What combinations can code for the same amino acid?   1) xyA (pair w/) & xyG (wobbles w/) 2) xyC (pair w/) & xyU (wobbles w/)   N/A  
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5 properties of genetic code   1) triplet code 2) non- overlapping 3) non-restrictive 4) degenerate code 5) NOT ambiguous   N/A  
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