How many different kinds of RNA codons encode amino acids?
A) 3
B) 72
C) 61
D) 64
E) 120

Name: How many different kinds of RNA codons encode amino acids? A) 3 B) 72 C) 61 D) 64 E) 120
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Question

How many different kinds of RNA codons encode amino acids?  
A) 3
B) 72
C) 61
D) 64
E) 120

Quizplus · Accepted Answer

There are a total of 64 possible RNA codons, out of which 3 (UAA, UAG, and UGA) do not encode amino acids and serve as stop codons. This leaves 61 codons that encode the 20 different amino acids used to build proteins.

How Many Different Kinds of RNA Codons Encode Amino Acids