Which of the following organisms causes plague?
A. Helicobacter pylori
B. Campylobacter jejuni
C. Yersinia pestis
D. Bordetella pertussis
Answer: C
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Dietary treatment of galactosemia ____
a. need not begin until one or two months after birth b. consists of very low protein intake c. can usually be discontinued by the age of twelve d. completely eliminates symptoms of the disease e. should be started within a few days after birth
Environmental pressures result in a(n) ____ of adaptive alleles
a. decrease in the frequency b. increase in the frequency c. assortment d. removal e. migration
Does reproductive cloning always involve somatic cell nuclear transfer? What will be an ideal response?
Spiegelman and colleagues demonstrated natural selection with RNA molecules. How did they satisfy the three ingredients for natural selection?
What will be an ideal response?