BIOL 1020 Lecture Notes - Lecture 11: Messenger Rna, Pyrimidine, Ribose

• School: Auburn University
• Department: Biology
• Course: BIOL 1020
• Professor: Dr.J.W.Zanzot

Document Summary

Quaternary structure results when two or more polypeptides chains. A slight change in primary structure can affect a proteins structure and ability to function. Sickle cell disease an inherited blood disorder results from. Single amino acid substitution in the protein hemoglobin. What determines protein structure: in addition to primary structure, physical and chemical conditions can affect structure, alterations in ph salt concentration temp and other environmental factors can cause a protein to unravel. This loss of a proteins native structure is called denaturation: a denatured protein is biologically inactive. The amino acid sequence of a polypeptide is programmed by a uni of inheritance called a gene. Genes are made of dna a nucleic acid made of monomers called nucleotides. The roles of nucleic acids: dna rna, dna provides directions for its own replication, dna directs synthesis of messenger rna (mrna) and through mrna controls protein synthesis, protein synthesis occurs in ribosomes. Pyrimidine is v important big word small molecule.