All of the following pertain to Clostridium difficile infection except
A. it is due to ingestion of contaminated, improperly stored, cooked meats and gravies.
B. it is a colitis that is a superinfection.
C. it often has an endogenous source.
D. it may be on the rise due to increased use of gastric acid inhibitors.
E. it is major cause of diarrhea in hospitals
Answer: A. it is due to ingestion of contaminated, improperly stored, cooked meats and gravies.
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Because there was no previous history of hemophilia in Queen Victoria's family, and because she transmitted the mutant allele to a number of her children, it is reasonable to assume that ____
a. her father was homozygous for the disorder b. her mother was homozygous for the disorder c. her sister was a heterozygous carrier d. she was homozygous for the disorder e. she was a heterozygous carrier
Amino acids are linked together by glycosidic bonds to form proteins
1.True 2.False
If you want to prevent rho-dependent transcription, which sequences would you target to mutate the rho utilization (rut) site?
A) coding region B) start codon C) promoter sequence D) terminator sequence E) stop codon
The structure of DNA and RNA are similar in that
(A) both molecules are made of the same 5-carbon sugar (B) both molecules are composed of the same 4 nitrogenous base (C) the nucleotides of both molecules contain a phosphate group (D) both molecules are double stranded which are antiparallel in directionality