BIOA01H3 Chapter Notes - Chapter 13: Polysome, Endomembrane System, Nonsense Mutation

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6 Nov 2013
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BIOA01H3 Full Course Notes
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13. 1a gene specify either protein or rna products. Proteins are encoded by genes made of dna. Each of these subunits is separate molecule called a polypeptide made by a separate gene: beadle and tatum hypothesized the one gene one polypeptide rule. Transcription: the mechanism by which the information encoded in dna is made into a complementary rna copy. Translation: the use of information encoded in the rna to assemble amino acids into a polypeptide. Central dogma: dna rna protein. Transcription: rna polymerase creates rna since that is complementary to the dna sequence of the given gene, template strand is read by rna polymerase, mrna: rna transcribed from a gene encoding a polypeptide. Translation: mrna associates with a ribosome, a particle on which amino acids are linked into a polypeptide chain. In prokaryotic cells transcription and translation of a gene can occur is simultaneously. Eukaryotes require a process of mrna being transported outside of the nucleus.

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