Biology 1002B Lecture Notes - Coding Strand, Stem-Loop, Tata Box
3 Mar 2013
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Document Summary
Lots proteins of ets & calvin cycle are coded by genes that are no longer in chloroplasts. Chloroplasts genome is expressed in a prokaryotic environment: organelle dna is circular, some genes on circular genome are transcribed and translated inside chloroplasts. Elysia: nuclear genome, chloroplast genome, mitochondrion genome. Ribosomal rna: great deal of secondary structure that contains information its not a ribbon, can pair with itself gives it secondary & tertiary structure, structure and sequence both contain information, riboswitch (secondary structure) can influence translation. Ribosomal rna (orange) base pairs with itself. Enzymatic activity lies in the rna of ribosomes. Protein: product of gene expression, ex. Gene codes for more than protein: ex. Polymerase read template from 3" to 5". Transcription factors help eukaryotic rna polymerase recognize promoter sequences. Polymerase initiates rna synthesis at start point. Template strand = dna that codes for mrna. Polymerase moves downstream, unwinding dna and elongating transcript 5 3 .
