Which one of condition is not suitable for influenza virus.()
A: +ssRNA
B: icosahedral
symmetry
C: HA
and NA on surface of envelope
D: with
envelope
E: growing
in embryonated egg
A: +ssRNA
B: icosahedral
symmetry
C: HA
and NA on surface of envelope
D: with
envelope
E: growing
in embryonated egg
举一反三
- Which<br/>one of the following is the reason of pandemic<br/>flu<br/>() A: virus<br/>has strong virulence <br/>(B)HA<br/>of Influenza B: virus<br/>easily produce variation, and people lack of immunity <br/>(C)<br/>NA of Influenza C: virus<br/>easily produces variation, and people lack of immunity<br/>(D)<br/>Influenza D: virus<br/>develops new subtype virus, and people lack of immunity
- Which<br/>of following can cause the great variation of influenza virus and<br/>wide epidemic:() A: gene<br/>reassortment B: gene<br/>recombination C: transduction D: transformation E: conjunction
- Preface<br/>is to book as () A: macaroni<br/>is to pasta B: hero<br/>is to legend C: lobby<br/>is to hotel D: capital<br/>is to state E: mail<br/>is to envelope
- Which<br/>of following can cause the great variation of influenza virus and<br/>wide epidemic: A: gene<br/>reassortment B: gene recombination C: transduction D: transformation E: conjunction
- Which<br/>of the following virus is complex symmetry () A: bacteriophage B: herpesvirus C: hantavirus D: HIV E: none of the above