What characteristic of the polymerase isolated from Thermus aquaticus makes it unique and highly useful for maintaining the enzyme efficiency during PCR?
What will be an ideal response?
heat stability
Biology & Microbiology
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Which of the following was a challenge to the survival of the first land plants?
A) too much sunlight B) a shortage of carbon dioxide C) desiccation D) animal predation
Biology & Microbiology
Which strain of Escherichia coli may be involved in foodborne infection?
A. HB101 B. M309 C. AB220 D. O157:H7
Biology & Microbiology
Which of the following antibiotics inhibits the synthesis of bacterial cell walls?
a. Penicillin b. Streptomycin c. Tetracyclin d. Actinomycin D
Biology & Microbiology
Which is NOT part of a description of an antibody molecule?
A. contains a constant and a variable region on each chain B. forms an X-shaped protein molecule C. contains an antigen-binding site on each arm D. contains two light chains and two heavy chains
Biology & Microbiology