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Biology Form 3
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Budding in Yeast

It is where a new individual is produced as an outgrowth (bud) of the parent and is later released as a self-supporting, identical copy of the parent.

It takes place in unicellular fungi such as yeast (Kingdom Fungi).

The cell is made up of a thin cell wall which encloses the cytoplasm containing a vacuole and a nucleus.

In the cytoplasm are glycogen granules and other food reserves.

In budding, a small area of the cell wall of a parent cell softens and forms a project of bud, which bulges outwardly. This is followed by the division of the nucleus into two. One of the nuclei moves into the new bud. The bud then grows in size and forms new cell organelles. At this stage, the bud separates off.

However, since the budding process is so fast, the first bud starts to form another before it separates off from the parent thus forming a short chain of cells.


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