All of the following describes preformed toxins EXCEPT:
A. it associated with Staphylococcus aureus, Bacillus cereus and botulism caused by Clostridium botulinum
B. the symptoms caused by preformed toxin occur much sooner than for other forms of poisoning
C. the bacteria do not need to grow for the symptoms to occur
D. the poisoning may be treated successfully by giving a high dose of broad spectrum antibiotics
Ans: D. the poisoning may be treated successfully by giving a high dose of broad spectrum antibiotics
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Because they interfere with metamorphosis, ecdysone inhibitors could be effective as insecticides
Indicate whether the statement is true or false.
Which of the following is a primary consumer?
a. cow b. dog c. hawk d. fox e. snake
Chloramphenicol binds to the 50S portion of the ribosome which will inhibit
a. transcription in prokaryotic cells b .transcription in eukaryotic cells c. translation in prokaryotic cells d. translation in eukaryotic cells
Jurassic Park is possible in theory but not in reality. Why?
A. There is not enough space on this Earth for dinosaurs B. There is not a similar organism alive in which to put the DNA C. At best, we can only get a few fragments of dinosaur DNA and we would need the entire genome to create a dinosaur