Below are four mRNA sequences. Which of the two sequences code for the same protein? Select TWO correct answers. I. UCU UUA GCC ACU AGA AGC II. UCG CUA GCG ACC AGU UCA III. AGC CUC GCC ACU CGU AGUIV. UCG CUA GCG ACG AGU UCA
Question
Below are four mRNA sequences. Which of the two sequences code for the same protein? Select TWO correct answers. I. UCU UUA GCC ACU AGA AGC II. UCG CUA GCG ACC AGU UCA III. AGC CUC GCC ACU CGU AGUIV. UCG CUA GCG ACG AGU UCA
Solution
To answer this question, we need to translate the mRNA sequences into amino acid sequences. The genetic code is universal and each three-nucleotide codon corresponds to an amino acid or a stop signal.
I. UCU (Serine) UUA (Leucine) GCC (Alanine) ACU (Threonine) AGA (Arginine) AGC (Serine) II. UCG (Serine) CUA (Leucine) GCG (Alanine) ACC (Threonine) AGU (Serine) UCA (Serine) III. AGC (Serine) CUC (Leucine) GCC (Alanine) ACU (Threonine) CGU (Arginine) AGU (Serine) IV. UCG (Serine) CUA (Leucine) GCG (Alanine) ACG (Threonine) AGU (Serine) UCA (Serine)
Comparing these sequences, we can see that sequences II and IV code for the same protein.
Similar Questions
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