In any experiment, one must be certain to:
A. use clean glassware
B. have the hypothesis at hand
C. include a suitable control group
D. wear lab coats and safety glasses
Answer: C
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Which of the following is not true of oligonucleotide-directed mutagenesis?
A. Two complementary oligonucleotides, each identical in sequence to the cloned gene, are annealed to the opposite strands of the cloned gene. B. Two complementary oligonucleotides, each with the desired base change, are annealed to the opposite strands of the cloned gene. C. After repeated cycles of PCR, the mutation containing DNA predominates in the population. D. Nonmutant template plasmid DNA can be selectively eliminated by cleavage of the methylated template strand. E. The two annealed mutant DNA strands serve as primers of DNA synthesis in both directions around the plasmid vectors.
How does under nutrition impact the human body?
What will be an ideal response?
A(n) ________ is a combination of two or more kinds of tissue that together perform one or more
functions. a. organ b. cell c. organ system d. connective tissue e. neuroglial cell
Which of the lakes in Figure 56-2 may have a thermocline?
a. 1
b. 2
c. 4
d. 1 and 3
e. 2 and 4