Answer the following statements true (T) or false (F)
1. Most oncogenes encode proteins that function in cell growth signaling pathways.
2. Myc genes tend to be overexpressed in only a few forms of cancer.
3. p53 is a tumor suppressor gene that acts as a sensor of DNA damage.
4. Certain types of cancer are caused by viruses.
1. TRUE
2. FALSE
3. TRUE
4. TRUE
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Which of the following best describes sensory transduction?
A. The analysis of a nerve impulse by the brain. B. The conversion of a stimulus into a nerve impulse by using a receptor. C. The detection of an environmental stimulus by a nerve receptor. D. The conversion of a nerve impulse into a stimulus by using a receptor.
Resistant bacterial strains have evolved as a result of use and over use of _______________
Fill in the blank(s) with the appropriate word(s).
An advantage of (attenuated/inactivated/subunit) vaccines is that they usually elicit cell-mediated immune responses
What will be an ideal response?
A strictly fermentative bacterium produces energy
A) by glycolysis only. B) by aerobic respiration only. C) by fermentation or aerobic respiration. D) only in the absence of oxygen. E) only in the presence of oxygen.