A fetus is born with cardiac defects, CNS malformations, microtia, and thymic hypoplasia. The fetus was exposed in utero to which of the following drugs?
A. Cocaine
B. Isotretinoin
C. Thalidomide
D. Tobacco
E. Valproic Acid
Answer: B. Isotretinoin
Biology & Microbiology
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The sclera is indicated by
a. A. b. B. c. C. d. D. e. E.
Biology & Microbiology
Which one of the following carbohydrates is the most structurally complex?
a. sucrose b. fructose c. cellulose d. glucose e. a disaccharide
Biology & Microbiology
Name two cellular organelles, each having genetic material, that are involved in either photosynthesis or respiration
What will be an ideal response?
Biology & Microbiology
Two amino acids of the standard 20 contain sulfur atoms. They are:
A) cysteine and serine. B) cysteine and threonine. C) methionine and cysteine D) methionine and serine E) threonine and serine.
Biology & Microbiology