試題詳解

31. In yeast signal transduction, a yeast cell releases a mating factor which
(A) diffuses through the membranes to opposite type of cells, causing them to produce factors that initiate long-distance migrations
(B) binds to receptors on the membranes of opposite type of yeast cells
(C) passes through the membranes of opposite cell type, binds to DNA, and initiates transcription
(D) acts back on the same cell type that secreted the mating factor, changing its cell division
(E) Changes the shape of the opposite type of yeast cells