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SUMMARY: Two types of scar are formed on yeast cells as a result of the division process: a single ‘birth scar’ marking the point at which the cell was joined to the parent, and a variable number of ‘bud scars’ marking the points at which buds have been formed. A regular sequence of bud formations occurs. Cultures grown from the first and last buds appear to be identical.
A. A. Barton (Sun,) studied this question.