Which of the following produces both a cytotoxin and an enterotoxin?
A) Clostridium botulinum
B) Clostridium difficile
C) Clostridium tetani
D) Corynebacterium diphtheriae
B) Clostridium difficile
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A climax community is ____
a. relatively stable b. a result of primary succession only c. a result of secondary succession only d. defined by high species diversity e. dominated by r-selected species
DNA sequencing using the dideoxy sequencing method involves PCR reactions using Taq polymerase, which we learned in this chapter can introduce errors because it lacks a proofreading mechanism
What precaution(s) can be taken in genomic or other sequencing projects to minimize the possibility of producing DNA sequences with errors?
Vaccines produced by genetically engineered bacteria cannot cause disease they are modeled after
Indicate whether the statement is true or false
Which of the following is both a codon for an amino acid and a start signal?
A) AAA B) AUG C) UAG D) GAU E) UGA