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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)
translation   taking nucleic acids and translating them to amino acids   N/A  
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6 things needed for initiation   1) mRNA 2) ribosomes 3) initiator tRNA 4) initiation factors (IF-1, IF-2, IF-3) 5) magnesium ions 6)GTP   N/A  
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"E-site"   exit site   where tRNA's are released  
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"A-site"   aminoacyl binding site   where next tRNA will attach  
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4 things needed for elongation   1) charged tRNAs 2) elongation factors(EF-Tu, EF-Ts, EF-G) 3) GTPs 4) peptidyl transferase   N/A  
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What does GTP do in elongation?   gives the energy required to transfer the charged tRNA   N/A  
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2 things needed in termination   1) release factors (RF-1, RF-2, RF-3) 2) GTP   N/A  
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What codons do RF-1 recognize?   UAG or UAA   N/A  
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What codons do RF-2 recognize?   UGA or UAA   N/A  
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aminoacyl-tRNA synthetase   required for activation of amino acids   N/A  
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EF-G   catalyzes translocation   N/A  
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EF-Tu & GTP   places tRNA in the "A site"   N/A  
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post-transcription occurs where?   eukaryotes   in the nucleus  
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translocation   messenger moves down the ribosome (shifts one codon)   N/A  
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peptidyl transferase   catalyzing peptide bond   N/A  
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Suedberg units   sedimentation coefficients   big#- big molecules small#- small molecules  
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30s   divides into 23s, 16s, 5s (in prokaryotes)   not additive  
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spacial DNA   eukaryotic rRNA has this due to exons (not transcribed)   N/A  
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45s   divides into 28s, 18s, 5.8s (in eukaryotes)   5s comes off of different gene sequence  
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"P-site"   peptidyl binding site   where tRNA's anticodons attach to the codons of the mRNA  
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