The only sterile tissue in either is the amphithecium, a single layer of tabular cells surrounding the mass of spore mother-cells. 7. Centrosomes are not present in ceils outside the antheridium nor ...

In fact, the mother cells accumulate extrachromosomal DNA circles ... in a nonrandom fashion in the progeny of a germinating yeast spore. But regardless of 'why', this work opens new avenues ...