GEOG 170A1 Lecture Notes - Lecture 7: Transfer Rna, Mutation
11 Sep 2015
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Document Summary
The dna sequence contains all info needed to make molecules of life. New rna strand is complementary carries info for building proteins to ribosomes and trna for translation protein info is carried in codons sequence of 3 mrna nucleotides codes for specific amino acid order of codons in mrna. 64 codons possible in making up genetic code. 20 amino acids in proteins trna delivers amino acids to ribosomes, and contains an anticodon. Amino acid order is determined by codon order. If the nucleotide sequence of a gene changes it can result in an altered gene product. Mutation that change a ucu codon to ucc is silent has no effect on gene"s production.
