Fig. 1. Comparison of the effects of wee1- and cdc25- mutants in fission yeast and swe1
and mih1
in budding yeast. cdc25- mutants arrest at G2/M in fission yeast, whereas mih1
cells undergo a delay but eventually enter mitosis. In wild-type budding yeast, the daughter cell is smaller than the mother cell, but undergoes additional growth during G1 (Hartwell and Unger, 1977).