Which of the following should NOT be used in
the development of science?
a. evaluation of data
b. personal conviction
c. prediction
d. systematic observation
e. sharing ideas
B
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Suppose you are provided with an actively dividing culture of E. coli bacteria to which radioactive thymine has been added. What would happen if a cell replicates once in the presence of this radioactive base?
A) One of the daughter cells, but not the other, would have radioactive DNA. B) Neither of the two daughter cells would be radioactive. C) All four bases of the DNA would be radioactive. D) Radioactive thymine would pair with nonradioactive guanine. E) DNA in both daughter cells would be radioactive.
What is the function of pine resins?
A. transportation of sucrose to the roots B. reduction of fungal and insect parasitism C. triggering of seed maturation D. aiding in pollen dispersal
The products of maltose fermentation in bread-making are ________.
A. carbon dioxide and water B. lactic acid and carbon dioxide C. lactic acid and water D. ethanol and carbon dioxide E. ethanol and water
Which of the following is a tube that carries urine from the kidneys to the urinary bladder in a mammal?
a. loop of Henle b. ureter c. urethra d. distal tubule e. proximal tubule