Evidence for the possible evolution of information storage from RNA to DNA is the fact that ____
a. they use the same nucleotides
b. some modern viruses synthesize DNA from an RNA template
c. bacteria use RNA as a genetic information storage molecule
d. RNA is a simpler molecule than DNA
e. RNA and DNA will form complementary pairs
ANSWER: b
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Which of the following cannot be addressed directly using biotechnology?
a. determining DNA profiles from a crime scene b. inserting a gene into a person to replace a defective gene c. examining the moral implications of inserting pesticide genes into crop plants d. using bacteria to produce products such as insulin and human growth hormone
Most of the energy that is released by the full breakdown of glucose to CO2 and water ends up in _____
a. NADH b. ATP c. heat d. electrons
Asian pearl divers hyperventilate in order to reduce the ____ concentration in the blood
a. oxygen b. hydrogen ion c. carbon dioxide d. chloride ion e. hemoglobin
A useful scientific hypothesis is one that is:
A) proven. B) testable. C) conclusive. D) accurate. E) abstract.