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試卷名稱：102年 - 102 台灣聯合大學系統_學士班轉學生考試：普通生物學#125140
年份：102年
科目：研究所、轉學考(插大)-普通生物學
27. Bacteria are grown in 15N (heavy) medium and then transferred to 14N (light) medium and allowed to replicate for 2 generations. The DNA is subsequently isolated and centrifuged in a CsC12 gradient to yield what type of gradient band(s)?
(A) one heavy band
(B) one light band
(C) one half-heavy (intermediate to heavy and light) band
(D) one heavy and one half-heavy band
(E) one light and one half-heavy band
