BIOL 2100 Lecture Notes - Lecture 8: Francis Crick, Nucleic Acid Double Helix, Protozoa
Document Summary
In 1962 watson, crick, and wilkins jointly received the nobel prize in physiology or medicine. What is dna: deoxyribonucleic acid, main role of dna molecules is storage of genetic information, dna organizes into structures called chromosomes (dna and protein) Microbial genetics: within microbiology and genetic engineering, studies genetics of microorganisms; bacteria, archaea, viruses and some protozoa and fungi, genetics science of heredity. Information in genes: genes, transfer of genetic information, expression of information to determine characteristics. The flow of genetic information: vertical gene transfer: flow of genetic information from one generation to the next (dna replication, central dogma: transcription followed by translation (protein synthesis) Joined by enzyme dna ligase: bacterial chromosomes have a single point of origin, replication proceeds in both direction (bidirectional, once they meet, the two molecules separate from each other and you have two molecules of dna. Aug (methionine: 3 stop codons (nonsense codons) end of each coding sequence (do not code for any amino acid)
