In which of the following situations would looking at a pedigree be most useful?
a. An adopted boy is admitted to the hospital with recurrent vomiting.
b. A young girl is born with diminished hearing and a cleft palate.
c. Six unrelated individuals with similar symptoms are admitted to the hospital in a
one-week period.
d. Three young boys who are first cousins show symptoms of a neurological disorder.
d. Three young boys who are first cousins show symptoms of a neurological disorder.
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Enzymes are
A. not needed for catabolic reactions. B. proteins that function as catalysts. C. used up in chemical reactions. D. carbohydrate or protein in composition. E. broken down in reactions that require energy input.
Poliomyelitis is an RNA virus that can invade the nervous system and cause paralysis within a matter of hours. Polio has been virtually eliminated world-wide by which of the following?
a. Antibiotics b. Vaccination c. Mosquito control d. Quarantine e. Improve water quality
Cells that help initiate the adaptive immune response by placing microbial antigens on their surfaces are generally referred to as:
A) regulatory T cells. B) B cells. C) antigen-presenting cells. D) helper T cells. E) mast cells.
)
A. Lysozyme B. Antibodies C. Complement D. Inflammation E. Interferon F. Fever