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Question 18M.2.HL.TZ2.c.ii

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Date May 2018 Marks available [Maximum mark: 2] Reference code 18M.2.HL.TZ2.c.ii
Level HL Paper 2 Time zone TZ2
Command term Outline Question number c.ii Adapted from N/A
c.ii.
[Maximum mark: 2]
18M.2.HL.TZ2.c.ii

Outline the role of tRNA activating enzymes in translation.

[2]

Markscheme

a. ATP «hydrolysis» provides energy for amino acid attachment ✔

b. they attach a specific amino acid to the (3') end / free CCA of a tRNA ✔

c. they do this repeatedly / they attach amino acid to all of the tRNA molecules that have anticodon corresponding to that amino acid