题目内容

Which one of the following is NOT true about the bacterial nucleus ()

A. Nuclear membrane
B. Nucleolus
C. Mitotic
DNA
E. none of the above

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What is not anabolic product of bacteria ()

A. endotoxin
B. exotoxin
C. anti-toxin
D. pigment
E. none of the above

Which of the following can kill the spores ()

A. disinfection
B. antisepsis
C. asepsis
D. sterilization
E. none of the above

Genetic material of bacteria include()

A. nuclear and plasmid
B. nuclear, plasmid and mesosome
C. nuclear, plasmid and prophage
D. nuclear and prophage
E. none of the above

Incubation period of HIV infection is ()

A. a few days
B. a few weeks
C. a few months
D. a few years
E. none of the above

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