An in vitor translation system can synthesize peptides in all three reading frames of the RNA template. When 5 -UCUCUCUC---(UC)n--- UCUCUCUC - 3 was used as the template in this in vitro translation system, the synthesized peptides contained 50% each of serine and leucine. When 5 -CCUCCUCCU---(CCU)n---CCUCCU-3 was used as the template, the synthesized peptides contained 33.3% each of serine, leucine, and proline. Deduce the condon for proline.

An in vitor translation system can synthesize peptides in all three re

1.	An in vitor translation system can synthesize peptides in all three reading frames of the RNA template. When 5 -UCUCUCUC---(UC)n--- UCUCUCUC - 3 was used as the template in this in vitro translation system, the synthesized peptides contained 50% each of serine and leucine. When 5 -CCUCCUCCU---(CCU)n---CCUCCU-3 was used as the template, the synthesized peptides contained 33.3% each of serine, leucine, and proline. Deduce the condon for proline.
A.	UCU
B.	CUC
C.	CCU
D.	UCC
Answer» D. UCC

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