BIOLOGY 1A03 Chapter Notes - Chapter 16: Leucine, Nuclear Membrane, Polysome
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BIOLOGY 1A03 Full Course Notes
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Transcription is the synthesis of rna from a. In bacteria: convert to mrna version of instructions in dna. Phosphodiester bond is formed by rna polymerase after base pairing occurs! synthesize mrna. [discovered in 1960] template directed synthesis in 5" 3" direction- does not require primer. Rna pol matches base in ribonucleotide in gene= makes complementary strand. Strand that is used as a template and read by enzyme is called template strand- other is called non-template strand (coding strand- b/c its sequence matches sequence of. Four bases in rna: a, u, c, g! Four bases in dna: a, t, c, g! Holoenzyme: enzyme made up of core enzyme and other required proteins. Prokaryotic rna polymerase is holoenzyme made up of core enzyme- has ability to synthesize rna and sigma subunit. Sigma factor acts a regulatory factor- tells rna where and when to start synthesizing rna- required for initiation phase of transcription.