35. Your bone cells, muscle cells and skin cells look different because
(A) they contain different numbers of genes.
(B) different genes are active in different kinds of cells.
(C) they are present in different organs.
(D) each cell contains different kinds of genes.
詳解 (共 1 筆)
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你的骨頭細胞、肌肉細胞跟皮膚細胞看起來不...