The RNA world proposal suggests that the first information molecules were ____

a. transfer RNA
b. ribosomes
c. messenger RNA
d. ribozymes
e. unpaired strands of DNA


ANSWER: d

Biology & Microbiology

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Which group includes all of the other groups?

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Which of the following statements is an accurate combination of postulates 3 and 4 of natural selection?

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How do carbohydrates contain and/or display information for cells?

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