title: An introduction to some concepts of molecular biology.
mesh_terms: D000225:Adenine / Q000032:analysis; D000595:Amino Acid Sequence; D001435:Bacteriophages / Q000032:analysis; D002454:Cell Differentiation; D003596:Cytosine / Q000032:analysis; D004247:DNA / Q000096:biosynthesis; D004254:DNA Nucleotidyltransferases / Q000037:antagonists & inhibitors; D005314:Embryonic and Fetal Development; D004790:Enzyme Induction; D004794:Enzyme Repression; D004926:Escherichia coli / Q000201:enzymology; D005696:Galactosidases / Q000032:analysis / Q000037:antagonists & inhibitors; D005815:Genetic Code; D006147:Guanine / Q000032:analysis; D012313:RNA / Q000096:biosynthesis; D012316:RNA Nucleotidyltransferases / Q000037:antagonists & inhibitors; D012333:RNA, Messenger / Q000096:biosynthesis; D013941:Thymine / Q000032:analysis; D014498:Uracil / Q000032:analysis; D014780:Viruses / Q000032:analysis
chemical_list: D012333:RNA, Messenger; D014498:Uracil; D006147:Guanine; D012313:RNA; D003596:Cytosine; D004247:DNA; D004254:DNA Nucleotidyltransferases; D012316:RNA Nucleotidyltransferases; D005696:Galactosidases; D000225:Adenine; D013941:Thymine