Question

using the codon table below, translate the following mrna into the polypeptide. first letter u c a g second letter u c a g third letter u phe uuu uuc uua uug leu ucu ucc uca ucg ser uau uac tyr ugu ugc cys uaa stop uag stop uga stop ugg trp c cuu cuc cua cug leu ccu ccc cca ccg pro cau cac his cgu cgc cga cgg arg u c a g a auu auc aua ile aug met acu acc aca acg thr aau aac asn agu agc ser aaa aag lys aga agg arg u c a g g guu guc gua gug val gcu gcc gca gcg ala gau gac asp ggu ggc gga ggg gly u c a g mrna a - u - g - c - a - a - u - g - c - c - u - g - u - g - a 25. what would be the polypeptide translated from the mrna listed above? a. gln - ser - val - stop b. gln - ser - leu - cys - thr c. tyr - val - thr - ser d. met - gln - asp - glu e. met - gln - cys - leu

Explanation:

Step1: Divide mRNA into codons

The mRNA sequence A - U - G - C - A - A - U - G - C - C - U - G - U - G - A is divided into codons: AUG, CAA, UGC, CUG.

Step2: Look up amino - acids in the codon table

AUG codes for Met (Methionine), CAA codes for Gln (Glutamine), UGC codes for Cys (Cysteine), CUG codes for Leu (Leucine).

Answer:

e. Met - Gln - Cys - Leu