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(USMLoid) The single tyrosine tRNA recognises both of the tyrosine codons - UAU and UAC. Which of the following is therefore the anticodon sequence of this tRNA?

		1. 5' - AAA - 3'
		2. 5' - GAG - 3'
		3. 5' - AAG - 3'
		4. 5' - UUA - 3'
		5. 5' - GUA - 3'

(USMLoid) The single tyrosine tRNA recognises both of the tyrosine codons - UAU and UAC. Which of the following is therefore the anticodon sequence of this tRNA?

		1. 5' - AAA - 3'
		2. 5' - GAG - 3'
		3. 5' - AAG - 3'
		4. 5' - UUA - 3'
		5. 5' - GUA - 3'

This is a question about the wobble position - and yes, it corresponds almost exactly to a USMLE question. However, you can answer it without remembering almost anything about that table of non-canonical base-pairings at the wobble position. Just think it through. All the choices except the correct one are eliminated even if you just remember that a base never base-pairs with itself. The correct answer is: 5' - GUA - 3'

נערך Jan 28 '21 - 09:17 Ido Cohen Lass