Which of the following bacteria produce one of the deadliest bacterial toxins known?
A. Clostridium perfringens
B. Clostridium difficile
C. Clostridium tetani
D. Clostridium botulinum
E. Corynebacterium species
Answer: D
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A mutualism in each species can live without the other is termed a
A. facultative mutualism. B. obligate mutualism. C. definite partnership. D. dispersive mutualism. E. defensive mutualism.
If an mRNA carries AUCGUG as a sequence,
what would be the sequence of the DNA complement to the sequence of DNA that is the complement to the mRNA?
a. ATCGTG b. TCGCAC c. CGATCT d. GCTACA e. UAGCAC
Exponential growth is rare because resources are usually limiting.
Answer the following statement true (T) or false (F)
Which of the following is an incorrect pairing?
A. primary structure; amino acid sequence B. secondary structure; disulfide bridges C. tertiary structure; covalent bonds D. quaternary structure; two or more polypeptides E. secondary structure; ?-pleated sheets