Spore: in fungi (including yeastplugin-autotooltip__default plugin-autotooltip_bigYeast: in this book, refers to Saccharomyces cerevisiae, a single-celled eukaryotic microbe used as a model genetic organism. See Chapter 02), ascospores (spores) are the equivalent of the four daughter cellsplugin-autotooltip__default plugin-autotooltip_bigMother/daughter cells: in cell division, a mother cell divides to form two daughter cells. of meiosisplugin-autotooltip__default plugin-autotooltip_bigMeiosis: a process involving two sequential cell divisions that usually produces four gametes (reproductive cells such as sperm or eggs)..