Which of the following are true about codons?
A) They are complementary to DNA and specify amino acids at the ribosome.
B) They are complementary to DNA and are a two-nucleotide code for an amino acid.
C) They are a circular series of nucleotide triplets.
D) They are complementary to RNA and specify amino acids at the ribosome.
E) They are placed at random in the RNA.
Answer: A
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Fill in the blank(s) with the appropriate word(s).
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