Which statement about temperate bacteriophages is not right?
A. Lysogen is the result of temperate phage infection?
B. Some prophage can cause lysis of bacteria under certain condition.
C. They carry either DNA in head or RNA in the tail.
D. Prophage is a phage DNA integrated into bacterial chromosome
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Which statement about bacteriophages is not right?
A. Viruses infect bacteria,
B. viruses infect human
C. viruses infect fungi.
D. Viruses infect spirochete,
Which of the following elements is called “jumping genes”?
A. transposons
B. Plasmid,
C. virulent phages
D. prophage
Which of the following is a NOT true statement concerning Transposable Genetic Elements ?
A. They move from one location to another within a chromosome.
B. They contain single-stranded DNA.
C. IS may result in insertion mutation.
D. Transposons may confer antibiotics resistance.
Which statement is not right about bacterial genetics materials?
A. RTF in R-plasmid codes sex pili;
B. R-plasmid responsible for drug-resistance;
C. All R plasmids are conjugative plasmid.
D. R-plasmid carries R determinants.
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