What are plasmids?
a. They are circular strands of DNA found in bacteria.
b. They are vectors of diseases.
c. They are a type of virus.
d. They are genetic clones of bacterial chromosomes.
A
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Which of the following is true regarding hemoglobin?
a. It is a lipid. b. It contains iron. c. It raises the concentration of oxygen in the blood. d. It is present in all vertebrates and invertebrates. e. It is identical to hemocyanin.
If a woman of blood type A has a child of blood type O, the father may belong to
a. blood types A, AB, or O, but not B. b. blood type O only. c. blood types A, B, or O, but not AB. d. any blood type other than type A. e. blood type A only.
Which of the following is not an essential component of the bacterial elongation stage of translation?
A. functional 70S ribosome B. EF-Ts C. aminoacyl-tRNAs D. ATP
Which of the following statements regarding terrorism is NOT correct?
A) Terrorism violates the criminal laws of the United States. B) Individuals commit acts of terrorism to further a political or social objective. C) Terrorism intimidates a government or the civilian population. D) The majority of terrorist attacks are impulsive and unplanned.