Biology, Pages 334-346Neil Campbell and Jane Reece's BIOLOGY remains unsurpassed as the most successful majors biology textbook in the world. This text has invited more than 4 million students into the study of this dynamic and essential discipline. |
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Page 33
... - stranded or single - stranded ? The nature of the genome is the basis for the common classification of viruses shown in Table 18.1 on the next page . Single- stranded RNA viruses are further classified into three classes ( 33.
... - stranded or single - stranded ? The nature of the genome is the basis for the common classification of viruses shown in Table 18.1 on the next page . Single- stranded RNA viruses are further classified into three classes ( 33.
Page 34
... three classes ( IV – VI ) according to how the RNA genome functions in a host cell . Another important characteristic of a virus is the presence or absence of a membranous envelope derived from host cell membrane . Rather than consider ...
... three classes ( IV – VI ) according to how the RNA genome functions in a host cell . Another important characteristic of a virus is the presence or absence of a membranous envelope derived from host cell membrane . Rather than consider ...
Page 39
... three types of single- stranded RNA genomes found in animal viruses , the genome of class IV viruses can directly serve as mRNA and thus can be translated into viral protein immediately after infection . Figure 18.8 shows a virus of ...
... three types of single- stranded RNA genomes found in animal viruses , the genome of class IV viruses can directly serve as mRNA and thus can be translated into viral protein immediately after infection . Figure 18.8 shows a virus of ...
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animal viruses bacterial cell bacterial chromosome bacteriophage bacterium bind to specific capsid cause disease cellular enzymes circular coli cell Cycles of Phages DNA molecule double-stranded emerging viruses enter the host enveloped viruses eukaryotes existing viruses Figure genetic recombination glycoproteins herpesvirus host cell host range host species human disease immune system kill the host lysogenic cycle lytic cycle mechanisms membranous envelope microbes model systems mosaic virus TMV mRNA mutation natural selection favors nucleic acid obligate intracellular parasites particles phage DNA plant to plant plant viruses plasmids plasmodesmata polymerase prions prokaryotic prophage genes protein coat provirus restriction enzymes retrovirus reverse transcriptase RNA viruses Scientists simplest spread stranded RNA symptoms syndrome synthesis temperate phage template tobacco mosaic virus transcribed transposons type of virus vaccines vertical transmission viral diseases viral DNA viral envelope viral genome viral infection viral nucleic acid viral proteins viral reproductive cycle viroids virulent phage viruses and bacteria viruses cause