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10. Below is the 5\' end of a mRNA. In a., write down the first four amino acids

ID: 216280 • Letter: 1

Question

10. Below is the 5' end of a mRNA. In a., write down the first four amino acids that would be linked if this mRNA was translated in an eukaryotic cell based on how the ribosomes would find the first AUG in the mRNA in eukaryotic cells. In b. write the first four amino acids that would be linked if this mRNA was translated in a prokaryotic cell. Table 4.1 in your book has the genetic code. Note because translation initiation is different between prokaryotes and eukaryotes, you will get different answers (see figure 9.8 for a depiction of the differences in translational initiation) a. First 4 amino acids coded in eukaryotic cells b. ACUGGCUAUGCUAGGAGGUACCGAAUAUGCGUGUAGGA.... First 4 amino acids coded in prokaryotic cells Either eEF1py in eukaryotes or the homologous EF-Ts from prokaryotes are required for the elongation cycle to continue to occur. What do they do to allow elongation to continue? (see Figure 9.14 and your textbook) 11.

Explanation / Answer

10.

a) AUG-CUA-GGA-GGU

Met-Leu-Gly-Gly

b) AUG-CUA-GGA-GGU

Met-Leu-Gly-Gly