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 15
... origin ( glycoproteins are proteins with carbohydrate covalently attached ) . Some viruses carry a few viral enzyme molecules within their capsids . The most complex capsids are found among viruses that infect bacteria , called ...
... origin ( glycoproteins are proteins with carbohydrate covalently attached ) . Some viruses carry a few viral enzyme molecules within their capsids . The most complex capsids are found among viruses that infect bacteria , called ...
Page 47
... origin of viruses is still a topic of much debate . Perhaps the earliest viruses were naked bits of nucleic acid that made it from one cell to another via injured cell surfaces . The evolution of genes coding for capsid proteins may ...
... origin of viruses is still a topic of much debate . Perhaps the earliest viruses were naked bits of nucleic acid that made it from one cell to another via injured cell surfaces . The evolution of genes coding for capsid proteins may ...
Page 78
... replication is outward from the origin in both directions , one new strand at so each replication fork is made udadt discontinuously in the direction backof toward the origin ( see Figure 16.16 ) . round the circular chromo3200t ni yeb. 78.
... replication is outward from the origin in both directions , one new strand at so each replication fork is made udadt discontinuously in the direction backof toward the origin ( see Figure 16.16 ) . round the circular chromo3200t ni yeb. 78.
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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