Excerpt from Figure 14.8
The accompanying figure represents which chromosomal change?
A. Inversion
B. Deletion
C. Duplication
D. Translocation
E. Aneuploidy
Answer: C
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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.
Community ecology is best defined as the study of
A. plant distributions in a given region. B. mutual benefits between organisms at all scales in a region. C. the relationship between abiotic and biotic factors. D. how groups of species interact in the same place at the same time E. global scale influences of major disturbances such as volcanos.
Weakening of trade winds results in
A) flooding in Peru. B) flooding in Indonesia. C) reduced convection. D) cooler ocean temperatures in Peru.
Which statement is NOT correct about the trp operon?
A. Tryptophan acts as the corepressor. B. The structural genes make products that are part of an anabolic pathway for the synthesis of tryptophan. C. Tryptophan binds to the repressor protein and inactivates it. D. It is normally turned off if tryptophan is present.