________ engineering involves changing an organism's existing DNA.
A. Genetic
B. Reverse
C. Biological
D. Chemical
Answer: A
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Which of the following is one of the first signs of liver disease?
A. Glycosuria B. Anuria C. Bilirubinuria D. Phenylketonuria E. Proteinuria
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Which of the following stimulates red blood cell production?
A. thymosin B. melatonin C. erythropoietin D. atrial natriuretic peptide
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