Which of the following molecular abnormalities is most likely related to cancer risk after infection with papillomavirus (HPV)?
A. Trapping of the Ras protein in a GTP-bound state
B. Increased expression of laminin receptor genes
C. Functional inactivation of the Rb protein
D. Increased expression of epidermal growth factor receptor
Ans: C. Functional inactivation of the Rb protein
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In chemical reactions, most of the entropy increase occurs as ________
A. heat B. chemical energy C. ATP production D. glycolysis E. electrical energy
The comparison of homologous traits in living and extinct organisms is an example of ____
a. comparative morphology b. taxonomy c. historical biogeography d. paleontology e. molecular biology
The ____ connects the peripheral nerves to the brain
a. pons b. gray matter c. white matter d. spinal cord e. medulla oblongata
If hemoglobin is saturated (1.3 mL of oxygen per gram) and there are 150 grams of hemoglobin per liter of blood, how much oxygen can be delivered to the tissue if cardiac output is 15 liters per minute?
A) 2925 g O2/min B) 2925 mL O2/min C) 1300 g O2/min D) 650 g O2/min E) 1300 mL O2/min