阿摩線上測驗
40. Sister chromatids are__?
(A) genetically identical and attached to each other at the
centromere；
(B) genetically different and attached to each other at the centromere；
(C)
genetically identical；
(D) genetically different.
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統計： A(1), B(0), C(0), D(0), E(0) #3167726
統計： A(1), B(0), C(0), D(0), E(0) #3167726
