BIO206H5 Chapter Notes - Chapter 7.2: Transfer Rna, Base Pair, Genetic Code
Document Summary
An mrna sequence is decoded in sets of three nucleotides. Genetic code is the rules of how nucleotide sequence in mrna is translated to amino acid sequence of protein. There"s a total of 64 combinations of three nucleotides, and only 20 amino acids are found commonly in proteins. Every three nucleotide in rna is a codon. Can be translated in any one of three different reading frames trna molecules match amino acids to codon in mrna. Transfer rnas (trna) about 80 nucleotides in length. Four regions of trna form double strands to create clover shape. The anticodon is the unpaired region where it attaches to the codon to be translated. The 3" end of trna matches the amino acid that it will bring to the translation. Some amino acid have more than one trna due to redundancy, or some trna can base pair can base-pair with more than one codon.
