All of the following pertain to listeriosis except
A. it causes symptoms of fever, diarrhea and sore throat.
B. it causes a serious septicemia and meningitis in the elderly, immunocompromised and infants.
C. intrauterine infection usually results in fetal death.
D. adequate pasteurization and thorough cooking of food can improve prevention.
E. enterotoxin of the organism causes symptoms
Answer: E. enterotoxin of the organism causes symptoms
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Which of the following is a correct statement about the MacArthur/Wilson Island Biogeography Model?
A) The more species that inhabit an island, the lower the extinction rate. B) As the number of species on an island increases, the emigration rate decreases. C) Competitive exclusion is less likely on an island that has large numbers of species. D) Small islands receive few new immigrant species. E) Islands closer to the mainland have higher extinction rates.
Which of the following is NOT true of adult
cell cloning? a. It involves differentiated cells. b. It occurs with some frequency in nature. c. It involves rewinding the developmental clock. d. It involves an egg cell that has had its nucleus removed. e. It may involve nuclear transfer
A microbiologist explains to one of her biology classes that her research focuses on the nucleoid region of the cholera bacteria. This means that she is studying a region within the bacterium that contains the
A. peptidoglycan. B. nuclear membrane. C. nucleic acids. D. R plasmids.
The portion of an enzyme that binds specially to the substrate or substrates is referred to as the _____ of the enzyme.
Fill in the blank(s) with the appropriate word(s).