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

Biology & Microbiology

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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

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A useful scientific hypothesis is one that is:

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Biology & Microbiology

Which of the following cannot be addressed directly using biotechnology?

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Biology & Microbiology