Compare yeast and mold.  

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Although yeast and mold are both eukaryotic organisms and are classified as fungi, there are a number of differences between the two. These include:

  • Most types of yeast are unicellular organisms, while molds are multicellular.
  • Yeasts generally reproduce through asexual reproduction; molds reproduce either sexually or asexually.
  • Yeasts commonly reproduce through a process known as budding, in which the daughter cell grows as a bud on the parent cell. Over time, the DNA is duplicated and a nucleus migrates into the daughter cell, which detaches from the parent cell. Molds, as stated, undergo sexual or asexual reproduction.
  • Yeasts are white in color and are typically oval shaped. Molds, on the other hand, are typically colorful and can be orange, green, pink, etc.
  • There are about 1,500 or so known types of yeast. In comparison, there are thousands of types of mold.

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