BIOL 2344 Lecture Notes - Lecture 5: Transfer Rna, Eukaryote, 16S Ribosomal Rna
19 Sep 2017
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Tfiid binds to tata box tata binding protein tfiia and tfiib bind to strand rna polymerase ii tfiie and tfiih bind tfiih separates the strands rna grows in 5" to 3" end. 5" end of rna strand is capped by guanosine cap . Polyadenylation signal proteins cleave rna strand and add poly- a tail polymerase is kicked off and mature strand of rna is produced. All organisms need rna while not all organisms need dna. Dna needs rna polymerase to create primers. Seems to be involved in dna synthesis and protein synthesis. Specialized way to store information; more proofreading in dna polymerase. Dna is more stable (base pairs aren"t exposed and deoxyribose) Nucleus was safer place to store information. Dna replication transcription rna translation protein. Gamow ~ hypothesized that twenty combinations of four dna bases taken three at a time correspond to twenty amino acids used to form proteins; proposed overlapping code.
