The genetic code is a:
ASinglet code (1 base per amino acid)
BDoublet code (2 bases per amino acid)
CTriplet code (3 bases per amino acid)
DQuadruplet code (4 bases per amino acid)
Answer & Solution
Correct answer: C. Triplet code (3 bases per amino acid)
Triplet code: 4³ = 64 possible codons specify the 20 amino acids (with redundancy/degeneracy). Singlet would give only 4 codes; doublet only 16. Crick demonstrated tripletness via frame-shift mutations.
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