Malignant breast, colon, and lung cancers typically have
A) mutated tumor suppressor genes.
B) active oncogenes.
C) chromosomal abnormalities.
D) activated telomerase.
E) All of these
E
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Which of the following best distinguishes between annuals, biennials, and perennials?
A. how tall they grow B. the number of flowers they produce C. the amount of root development D. the environment they grow in E. the time from seed germination to seed production
If a person had most of his stomach removed in the course of treatment of ulcers, what would be the most probable negative consequence?
a. He would be unable to digest carbohydrates. b. His pancreatic enzymes would be unable to attack fat molecules. c. He would be unable to digest proteins. d. He would have to eat frequent, small meals. e. His duodenum would become highly irritated by stomach acid.
The maximum amount of air a person can exhale is called:a
vital capacity. b. tidal volume. c. tidal capacity d. residual capacity. e. residual volume
What is the relative biological fitness of an individual who is heterozygous for sickle-cell disease who lives in central Illinois vs. an individual who is heterozygous and lives in South Africa?
What will be an ideal response?