試題詳解

75. The data were obtained from a study of the length of time spent in each phase of the cell cycle by cells of three eukaryotic organisms designated beta, delta, and gamma. Of the following, the best conclusion concerning the difference between the S phases for beta and gamma is that
(A) gamma contains 48 times more DNA than beta.
(B) beta and gamma contain the same amount of DNA.
(C) beta contains more RNA than gamma.
(D) beta is a plant cell and gamma is an animal cell.
(E) gamma contains more DNA than beta