RT Book, Section A1 Riedel, Stefan A1 Hobden, Jeffery A. A1 Miller, Steve A1 Morse, Stephen A. A1 Mietzner, Timothy A. A1 Detrick, Barbara A1 Mitchell, Thomas G. A1 Sakanari, Judy A. A1 Hotez, Peter A1 Mejia, Rojelio SR Print(0) ID 1163278724 T1 Microbial Genetics T2 Jawetz, Melnick, & Adelberg's Medical Microbiology, 28e YR 2019 FD 2019 PB McGraw-Hill Education PP New York, NY SN 9781260012026 LK accesspharmacy.mhmedical.com/content.aspx?aid=1163278724 RD 2024/04/20 AB The science of genetics defines and analyzes heredity of the vast array of structural and physiologic functions that form the properties of organisms. The basic unit of heredity is the gene, a segment of deoxyribonucleic acid (DNA) that encodes in its nucleotide sequence information for a specific physiologic property. The traditional approach to genetics has been to identify genes based on their contribution to phenotype, the collective structural and physiologic properties of an organism. A phenotypic property, be it eye color in humans or resistance to antibiotics in a bacterium, is generally observed at the level of the organism. The chemical basis for variation in phenotype is change in genotype, or alteration in the DNA sequence, within a gene, or within the organization of genes.