Biology 1202B Lecture Notes - Lecture 16: Alternative Splicing, Intron, Eukaryote
Document Summary
Synthesis happens from 5" to 3: prokaryote; all of the sequences are codons, represent for rna and proteins, eukaryotes; not all the sequences code for proteins. Introns do not code for protein: exons code for proteins, open reading frame ; sytart to the end of the region to be translated. Spliced mrna ready for translation: constituent splicing occurs normally, alternative splicing specific exons get cut out (highly regulated) Eukaryote: translation always starts in the cytoplasm, but can end in the er, at any given time, trna is going to be in the nucleus when it is being synthesized, cytoplasm, If the proteins finish translation in the er, they are membrane proteins mitochondria and chloroplasts. Simultaneously transcription and translation in prokaryotes - production of polyribosomes. Sequencing dna depends on where the promotor is: organic molecules that have structure a. 4 trna is just transcribed and works trna does not have exons or introns,