小卷发
发表于 2025-3-26 20:57:05
Bernd W. Klöckneras the type species (. and .1951; . 1959; .1916a, b). The importance of the . (.1979) for the study of viruses as biologic entities and in defining the events which occur in virus-infected cells are exemplified by investigations which: (a) described the epidemiology of a virus disease in an animal p
ostracize
发表于 2025-3-27 02:20:32
Bernd W. Klöcknerical reactions and through numerous recent investigations with synthetic antigens (., 1966) as well as protein conjugates (., 1962; . and ., 1968), efforts have been aimed at the elucidation of the Structural features which are characteristic of the sites against which the antibodies are formed. Ant
HOWL
发表于 2025-3-27 06:03:38
Bernd W. Klöckner different types: complex, helical, or icosahedral. No generally valid concept for the mechanism of assembly of complex nucleoproteins has been established, but the biologic and physical principles involved in the assembly of helical and icosahedral nucleoproteins have been analyzed in detail. These
Trabeculoplasty
发表于 2025-3-27 11:32:54
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刺耳的声音
发表于 2025-3-27 15:12:46
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旋转一周
发表于 2025-3-27 19:48:30
Bernd W. KlöcknerThis is largely because influenza virus undergoes extreme antigenic variation, the mechanism of which is still poorly understood. Two kinds of antigenic variation occur in influenza viruses, antigenic drift and major antigenic shifts; both involve chan ges in the hemagglutinin and neuraminidase ant
净礼
发表于 2025-3-28 00:23:55
Bernd W. Klöckner serially undiluted in embryonated chicken eggs, both the amount of total virus particles as assayed by hemagglutinating units (HAU) and the amount of infectious virus particles as assayed by egg infectivity titer (EID50) decreased. However, he observed that the proportion of infectious particles as
chuckle
发表于 2025-3-28 02:36:49
Bernd W. Klöcknerpecies, fish, and insects (., 1970; ., 1973). Two serotypes of VS virus have been identified: VS. and VS. (., 1975). The standard infectious virions of either serotype are rods (rhabdos = rod) of approximately 175 × 68 nm which have one hemispherical and one planar end and contain a helical nucleoca
expdient
发表于 2025-3-28 06:18:15
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无意
发表于 2025-3-28 11:26:07
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