There Are 4 Different Bases and 64 Possible Codons in the Genome

question 3

Multiple Choice

There are 4 different bases and 64 possible codons in the genome, 20 different amino acids, and a large but variable number of tRNA genes (400-500 in mammals) . How many aminoacyl synthetase genes are there?

• A) 4
• B) 64
• C) 20
• D) The same number as there are tRNA genes

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