Transmission electron micrograph of virus particles of the papillomavirus,or wart virus,which belongs to the papovavirus class. Papilloma viruses cause warts to grow on the hands & feet as well as on the mucous membranes in the mouth,& on the genitals. Included in the papovavirus class are the polyoma viruses,which cause tumours in mice. Individual virions have icosahedral capsid symmetry (35-45nm across) & do not possess a lipoprotein envelope. Genetic information is in the form of double-stranded DNA contained within the protein capsid. Nearly all members of the group are oncogenic or capable of producing tumours. Magnification: x200,000 at 8x6 inch size | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / EM UNIT, CVL WEYBRIDGE |
Bildgröße: | 4919 px × 3661 px |
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Eigentums-Rechte: | nicht erforderlich |
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