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Listed below are some amino acids and their corresponding mRNA triplets.

Correct answer: A. Option A: alanine - GCA = CGT, arginine - CGA = GCT, lysine - AAG = TTC, phenylalanine - UUU = AAA

  • A. Option A: alanine - GCA = CGT, arginine - CGA = GCT, lysine - AAG = TTC, phenylalanine - UUU = AAA
  • B. Option B: alanine - GCU = CGA, arginine - AGG = TCC, lysine - AAA = TTT, phenylalanine - UUU = AAG
  • C. Option C: alanine - GCC = GGC, arginine - CGG = GCC, lysine - AAG = TTC, phenylalanine - UUU = AAA
  • D. Option D: alanine - GCA = TGT, arginine - CGA = GCT, lysine - AAG = TTC, phenylalanine - UUU = AAA
  • E. Option E: alanine - GCU = CGA, arginine - CGG = GCC, lysine - AAA = TTT, phenylalanine - UUC = AAG

Explanation

mRNA is complementary to the DNA template strand (and replaces T with U). DNA template (3' → 5'):CGT - GCT - TTC - AAACompare to the options:Option A: CGT GCT TTC AAA

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