Which of the following is not a termination codon?
A. UAG
B. UGA
C. UAA
D. AUG
Answer: D
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The type of receptor that consists only of a naked nerve fiber ending is called a
A. Pacinian corpuscle. B. cone. C. nociceptor. D. Meissner's corpuscle. E. cochlear hair cell.
Scientists recently identified a gene that is linked with ovarian cancer. Variations in the KRAS
gene occur in one-quarter of women with ovarian cancer. Thus, KRAS is considered a __________.
a. type of stem cell b. genetic marker c. vector d. DNA profile
What hypothesis did Boehm et al. develop after testing mice (initially) and eventually humans?
A. Because cyclophosphamide works on endothelial cells, natural selection for resistance will not occur in tumor cells. B. Because cyclophosphamide works on tumor cells, natural selection for resistance will not occur in endothelial cells. C. Because endostatin works on endothelial cells, natural selection for resistance may arise in tumor cells not initially killed. D. Because endostatin works on muscle cells, natural selection for resistance may arise in tumor cells not initially killed. E. Because endostatin works on tumor cells, natural selection for resistance will not occur in endothelial cells.
Inductive reasoning
What will be an ideal response?