GEN-3000 Lecture Notes - Lecture 23: African Trypanosomiasis, Guide Rna, Transfer Rna
Document Summary
Prokaryotes: go directly from transcription to translation. Eukaryotes: go through processing between transcription and translation. Guide rna has additional as: this is how we can change mrna from what is coded for in the dna, this doesn"t happen to every gene. All mrna editing occurs in the nucleus: prokaryotes can"t do this. +rna: the anticodon arm is essential in translation because it matches sup with the mrna, the acceptor arm latches onto the amino acid, +rna is essential for making ribosomes. We have multiple copies of +rna genes spread throughout the genome because they are so important. A codon is three nucleotides that specify one amino acid: this is analogous to one word in a language. A codon can only code for one amino acid: degenerate. One amino acid may be coded for by more than one codon: isoaccepting trna. Different trnas can carry the same amino acid: wobble.
