Addition of mitosis-promoting factor (MPF) to germinal cells in the skin arrested in G2 leads the cells to ____
a. stop dividing
b. enter prophase
c. undergo cytokinesis without mitosis
d. die
e. remain arrested in G2
ANSWER: b
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Sphagnum moss plays an important role in the global carbon cycle because it stores large amounts of organic carbon
A. true B. false
A man has a mutation in the ATP synthase gene. This results in an inability to synthesize ATP properly, causing extreme muscle weakness. If this man has children, what is the likelihood that they will inherit this disease from him?
A. 100% B. 0% C. 50% D. 25% E. 75%
Which is an organic molecule?
a. carbon dioxide (CO2) b. water (H2O) c. methane (CH4) d. hydrochloric acid (HCl) e. oxygen (O2)
Which of the following has been used to measure the relatedness of primates?
a. hemoglobin amino acid sequences b. blood types c. embryonic development d. bone structures e. brain shape