18.2 Condensing viral genomes RNA coils into helix into their coats Figure 18.2 A helical path for TMV RNA is created by the stacking of protein subunits in the virion. 情華大当
Figure 18.2 A helical path for TMV RNA is created by the stacking of protein subunits in the virion. 18.2 Condensing viral genomes into their coats
Prohead I has protein core Prohead I 18.2 Condensing viral genomes into their coats Prohead ll is empty DNA packaging begins Figure 18.3 Maturation of phage lambda passes through several Grizzled particle is part full with expanded head shell Mature phage particle stages.The empty head changes shape and expands when it becomes filled with DNA.The Black particle has full head electron micrographs show the particles at the start and end of the maturation pathway. Tail is attached Photographs kindly provided by A.F.Howatson. 清苇大当
Figure 18.3 Maturation of phage lambda passes through several stages. The empty head changes shape and expands when it becomes filled with DNA. The electron micrographs show the particles at the start and end of the maturation pathway. Photographs kindly provided by A. F. Howatson. 18.2 Condensing viral genomes into their coats
18.3 The bacterial genome is a nucleoid with many supercoiled loops Domain of a chromosome may refer either to a discrete structural entity defined as a region within which supercoiling is independent of other domains; or to an extensive region including an expressed gene that has heightened sensitivity to degradation by the enzyme DNAase I. Nucleoid is the compact body that contains the genome in a bacterium. 清菜大学
Domain of a chromosome may refer either to a discrete structural entity defined as a region within which supercoiling is independent of other domains; or to an extensive region including an expressed gene that has heightened sensitivity to degradation by the enzyme DNAase I. Nucleoid is the compact body that contains the genome in a bacterium. 18.3 The bacterial genome is a nucleoid with many supercoiled loops
18.3 The bacterial genome is a nucleoid with many supercoiled loops Figure 18.4 A thin section shows the bacterial nucleoid as a compact mass in the center of the cell.Photograph kindly provided by Jack Griffth. 清苇大当
Figure 18.4 A thin section shows the bacterial nucleoid as a compact mass in the center of the cell. Photograph kindly provided by Jack Griffith. 18.3 The bacterial genome is a nucleoid with many supercoiled loops
18.3 The bacterial genome is a nucleoid with many supercoiled loops Figure 18.5 The nucleoid spills out of a lysed E.coli cell in the form of loops of a fiber.Photograph kindly provided by Jack Griffith. 情華大当
Figure 18.5 The nucleoid spills out of a lysed E. coli cell in the form of loops of a fiber. Photograph kindly provided by Jack Griffith. 18.3 The bacterial genome is a nucleoid with many supercoiled loops