BIOL-UA 21 Lecture 3: Genomes and Diversity Lecture 3
Document Summary
1866- gregor mendel, austrian monk, discovered the laws of inheritance. 3" 5" 3" ribosome reads dna and makes protein out of it; scans along 5" end for an aug and puts in amino acid thymine. Dna mrna (transcription) mrna protein (translation) Can"t go back from protein b/c there could be more than protein/more proteins to decode. Gene: a stretch of dna corresponding to mrna (a transcribed sequence ) associated dna that controls when/where transcription happens like a control element. Gene is more than just a sequence that gets turned into mrna. Parts will be taken out before it is allowed to leave nucleus and go where ribosomes are. Process of taking out introns is called splicing start with exon and end with intron (2 exons and 1 intron) No introns, one exon regulatory sequences coding sequence translation stops. Untranslated regions are not translated into proteins.
