What is the purpose of Taq polymerase in a PCR reaction?
A. DNA denaturation
B. DNA synthesis
C. heating of the reaction
D. heating of the reaction and DNA denaturation
E. primer annealing
Ans: B. DNA synthesis
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Microarrays can be used to detect which one of the following? (Choose all that apply)
A. single nucleotide polymorphisms B. copy number variation C. restriction fragment length polymorphisms D. variable number tandem repeats
Which of the following statements is a logical consequence of the second law of thermodynamics?
A. If the entropy of a system increases, there must be a corresponding decrease in the entropy of the universe. B. If there is an increase in the energy of a system, there must be a corresponding decrease in the energy of the rest of the universe. C. Every energy transfer requires activation energy from the environment. D. Every chemical reaction must increase the total entropy of the universe. E. Energy can be transferred or transformed, but it cannot be created or destroyed.
Order ____ includes the turtles and tortoises
a. Crocodilia b. Squamata c. Testudines d. Saurischia e. Pterosauria
Which one of the following is not a direct method of disease transmission
A. Fomites B. Particles of mucus expelled from the respiratory tract C. Contact with feces D. Hand-shaking E. Intercourse