Biology 1202B Lecture Notes - Lecture 13: Stop Codon, Arginine, Intron
15 Oct 2018
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Document Summary
Processing of rna in which higher organisms are able to take relatively few genes to come up with many different proteins. This process is not available in prokaryotes. Multiple rna polymerase functioning and multiple ribosome functioning. Transcription and translation occur at the same time in prokaryotes. Proteins have ends/polarity: determined by what molecule or group is at the end, nitrogen terminal, c terminal, n-terminal what is translated first. Ribosome has three individual slots that interacts with trna molecules: epa sites trna. Transiting or carrying the individual amino acids. After rna is transcribed, it modifies itself. Inosine: modified adenine, able to base pair with several other base pairs (g, a and c) 61 codons specify an aa: but not 61 different trna"s. Individual trna"s are able to bind multiple codons because of the wobble in the. In the 3rd position of the codon, there is less restriction; looser: ex. G-u pairing: two different codons, same amino acid.
