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Of the 64 possible codons in the genetic code:
AAll 64 code for amino acids
B61 code for amino acids and 3 are stop (terminator) codons (UAA, UAG, UGA)
CNone code for amino acids
D20 code for amino acids and 44 are stop codons
Answer & Solution
Correct answer: B. 61 code for amino acids and 3 are stop (terminator) codons (UAA, UAG, UGA)
**61 codons = amino acids, 3 codons = stop (UAA, UAG, UGA)**. The code is **degenerate** (most amino acids have multiple codons), **non-overlapping**, **read 5′→3′ without punctuation**, and **nearly universal**.
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