As we know that yeast is a fungus and it consists of a single microscopic spherical cell, which reproduces by budding.
During budding, a small bud or outgrowth is formed on one side of the cell. The nucleus divides by mitosis into two nuclei and one of the nuclei floats in the bud.
Bud enlarges and is finally cut off as an independent cell. When the process of budding is rapid, the individuals formed, do not separate at once and as a result, small groups of attached cells may sometime be seen.
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