29 Oct 07

29 Oct 07 - An Introduction to Translation In translation ,...

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Unformatted text preview: An Introduction to Translation In translation , the sequence of bases in the mRNA is converted to an amino acid sequence in a protein. 5 TTATAA 3 By convention, DNA and RNA sequences (except anticodons) are written from left to right in the 5 to 3 direction. Which, if any, of the sequences below is/are complementary to A. TTATAA A. UUAUAA A. AATATT A. Both A and B could be correct A. None of the above Ribosomes Are the Site of Protein Synthesis Ribosomes catalyze translation of the mRNA sequence into protein. In bacteria, ribosomes begin to translate mRNA before RNA polymerase has even finished transcribing it. In eukaryotes, mRNAs are synthesized and processed in the nucleus and transported to the cytoplasm for translation by ribosomes. How Does an mRNA Triplet Specify an Amino Acid? How Does an mRNA Triplet Specify an Amino Acid? Francis Crick's adapter-molecule hypothesis predicted that translation required adapter molecules that interacted with specific mRNA codons held amino acids in place. The Role of Transfer RNA The adapter molecule is a small RNA called transfer RNA (tRNA) ....
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This note was uploaded on 04/07/2008 for the course BIOL 100 taught by Professor Staff during the Fall '07 term at UMBC.

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29 Oct 07 - An Introduction to Translation In translation ,...

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