Abstract
There are many examples of the occurrence of synchronous mitosis in multinucleate cells. If the induction of synchronous meiosis in nuclei in a single cell is possible, it would be usefully for the study of meiotic control. A temperature sensitive, cytokinesis deficient mutant (cdaA) of Tetrahymena has many micronuclei or germ nuclei at non-permissive temperature. When the mutant cell conjugated with wild type cell, all micronuclei in the mutant cell entered meiosis synchronously, but the meiosis did not synchronize with that of the nucleus of the partner cell of conjugating pair.
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