DNA microarray technology is used to measure the
A. levels of specific proteins expressed by cells.
B. levels of specific RNAs expressed by cells.
C. genetic complexity of cells of interest.
D. DNA content of cells.
Answer: B
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How does the digestion and absorption of fat differ from that of carbohydrates?
A. Processing of fat does not require any digestive enzymes, whereas the processing of carbohydrates does. B. Fat absorption occurs in the stomach, whereas carbohydrates are absorbed from the small intestine. C. Carbohydrates need to be emulsified before they can be digested, whereas fats do not. D. Most absorbed fat enters the lymphatic system, whereas carbohydrates directly enter the blood. E. Fat must be partially digested by bacteria in the large intestine before it can be absorbed, which is not the case for carbohydrates.
Prions are of significance because they cause infections of
A. plants. B. prokaryotes. C. domestic animals and humans. D. fungi.
The monarch butterfly is poisonous to birds; therefore, birds avoid eating them. Viceroy butterflies look very similar
to monarch butterflies, but are not poisonous. Because they look like monarch butterflies, birds also do not eat viceroy butterflies. This is an example of ____.
a. resource partitioning b. competitive exclusion c. mimicry d. camouflage e. commensalism
During the splicing reaction, the intron-exon junctions are recognized by
A. miRNAs. B. the lariat. C. the branch point. D. snRNPs. E. SRP RNAs.