BIO206H5 Lecture Notes - Lecture 7: Messenger Rna, Cistron, Prokaryote
Document Summary
Genome : the cells entire library of genetic information. Located in nucleus, mitochondria & chloroplast segregated. A region (or regions) of dna which controls a discrete hereditary trait or characteristic. It usually corresponds to a single protein or rna molecule; a trait corresponds to biochemical entity; many genetic traits require multiple genes. A physical & functional unit of heredity, which carries information from one generation to the next. In molecular terms, it is the entire dna sequence necessary for the production of a functional protein or rna molecule. Contains a nucleotide sequence which when finally translated forms a protein (or rna molecule). Dna is not directly translated a message is made containing the information for a trait. Signals to identify where to start & stop transcription of the message: (not the same as start. Switches to determine when and when not to transcribe dna. A means to identify which dna strand should be transcribed.