A molecule of RNA (ribonucleic acid) contains the bases _______.
a. adenine, guanine, thymine, and uracil
b. uracil, adenine, guanine, and adenosine
c. thymine, adenine, guanine, and cytosine
d. adenine, guanine, cytosine, and uracil
Answer: d. adenine, guanine, cytosine, and uracil
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What are the genotypes of the married couple?
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a. true b. false