39.已知的鐮刀形血球貧血症(sickle cell anemia)是何種因素造成的?
(A)染色體缺失(deletion)
(B)染色體重複(duplication)
(C)染色體倒位(inversion)
(D)染色體易位(translocation)
(E)點突變(point mutation)
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統計: A(0), B(0), C(0), D(0), E(3) #2083211
統計: A(0), B(0), C(0), D(0), E(3) #2083211