BIO Griffths chap 4: problems 3, 5, 6, 9, 20 Griffths chap 15: problems 21 & 22 1. Energy is used in two steps in the elongation phase of translation, independent of “charging” the tRNA. Estimate the cost of translating a ~300 amino acid protein, in terms of breaking PP bonds. What are the two functions of these energy-requiring steps? How do they contribute to the accuracy of translation?