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 6
... Tobacco mosaic disease stunts the growth of tobacco plants and gives their leaves a mottled , or mosaic , coloration ( Figure 18.3 ) . In 1883 , Adolf Mayer , a German scientist , discovered that he 6.
... Tobacco mosaic disease stunts the growth of tobacco plants and gives their leaves a mottled , or mosaic , coloration ( Figure 18.3 ) . In 1883 , Adolf Mayer , a German scientist , discovered that he 6.
Page 8
... mosaic disease . Figure 18.3 Infection by tobacco mosaic virus ( TMV ) . A healthy , uninfected tobacco leaf ( left ) compared with a leaf experimentally infected with TMV ( right ) . Ivanowsky clung to the hypothesis that bacteria caused ...
... mosaic disease . Figure 18.3 Infection by tobacco mosaic virus ( TMV ) . A healthy , uninfected tobacco leaf ( left ) compared with a leaf experimentally infected with TMV ( right ) . Ivanowsky clung to the hypothesis that bacteria caused ...
Page 10
... tobacco mosaic virus ( TMV ) . Subsequently , TMV and many other viruses were actually seen with the help of the electron microscope . Structure of Viruses The tiniest viruses are only 20 nm in diameter smaller than a ribosome ...
... tobacco mosaic virus ( TMV ) . Subsequently , TMV and many other viruses were actually seen with the help of the electron microscope . Structure of Viruses The tiniest viruses are only 20 nm in diameter smaller than a ribosome ...
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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