ANTH 101 Lecture Notes - Lecture 3: Ribosome, Transfer Rna, Protein A
Document Summary
Anth 101 - lecture 3 - dna to you. Helps carry out the instruction contained in dna. Messenger rna (mrna) makes copies of select portions of dna called genes. Mrna copies a portion of dna (a gene) dna is contained in nucleus of the cell. Mrna is free to leave the nucleus and so after the transcription is complete mrna meets ribosomes. Once outside nucleus, a ribosome attaches to the mrna. Uses transfer rna to read the mrna which are 3 base pairs at a time. Translation trna reads the codon on the mrna and produces one amino acid per codon. Amino acids build up and are held together by a peptide bond. A series of amino acids build on the end of the ribosomes until a stop codon is read. Series of amino acids are called a polypeptide chain. Phenotypes are what you physically look like. Phenotypes are physical manifestations of certain genes.
