Homothallic
Encyclopedia
Homothallic refers to the possession, within a single organism, of the resources to reproduce sexually.

It can be contrasted to heterothallic
Heterothallic
Heterothallic species have sexes that reside in different individuals....

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It is often used to categorize fungi. In yeast, heterothallic cells have mating types a and α. An experienced mother cell (one that has divided at least once) will switch mating type every cell division cycle because of the HO allele.

See

  • Mating of yeast
    Mating of yeast
    The yeast Saccharomyces cerevisiae is a simple single celled eukaryote with both a diploid and haploid mode of existence. The mating of yeast only occurs between haploids, which can be either the a or α mating type and thus display simple sexual differentiation...

  • 4 Growth and Life Cycles (of Yeast)
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