阿摩線上測驗
37.n a supercoiled DNA, a stretch of ~20 base pairs changes from the B form to the Z form. △W =________ .
(A)+1.7
(B)+2.7
(C)+3.7
(D) -1.7
(E) -3.7
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統計： A(1), B(1), C(0), D(0), E(0) #3191447
統計： A(1), B(1), C(0), D(0), E(0) #3191447
