Which of the following is false regarding p-values?
A. Two-tailed p-values are more conservative than one-tailed p-values.
B. P-values tell you if your experiment was successful
C. The p-value is a probability.
D. A one-tailed p-value is appropriate when you have reason to believe that the difference between groups can only go one way.
Ans: B. P-values tell you if your experiment was successful
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Pre-mRNA splice sites are recognized by the spliceosome through:
A. base pairing with snRNAs. B. site-specific recognition by the Sm proteins. C. RNA hairpin recognition. D. the specific distance of the intron from the mRNA 5' cap.
Which of the following are examples of amplification of a hormone signal?
I) Epinephrine initiates an enzyme cascade. II) Steroids bind hormone-response elements in the cell and initiate transcription of many genes. III) A quantity of 0.09 mg of growth hormone leads to a 10,000-mg weight gain in a cow. IV) Different cell types have different receptors capable of binding the same hormone. A) only I and III B) only II and IV C) only I, II, and III D) only II and III E) I, II, III, and IV
Describe where pollen grains are produced in a plant. Fill in the blank(s) with the appropriate word(s)
What governs the movement of fluid out of capillaries at the arteriolar end?
A. The pressure of the blood is greater than the osmotic force of the interstitial fluid. B. The pressure of the interstitial fluid is greater than the pressure of the blood. C. The pressure of the blood is greater than the pressure of the interstitial fluid. D. The pressure of the interstitial fluid is greater than that of the blood. E. The pressure of the blood is less than that of the interstitial fluid.