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104年 - 104 國立清華大學_碩士班考試入學試題_生命科學院甲組、乙組、醫學生物科技學程:生物化學#121601
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23. Which of the following amino acids absorbs light most strongly between 250 and 300 nm?
(A) His
(B) Phe
(C) Trp
(D) Tyr
(E) None of the above absorb light in this range
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