This zygote next undergoes meiosis to make a linear array of haploid ascospores contained in the ascus (pl
Mapping the positioning of genes on a chromosome are achieved with a diploid organism through the percentage of crossover occasions like the issues there is done in class. But what takes place when you may have a haploid system like fungi? In this case, there are no “dominant” or “recessive” characteristics (because the organism is actually haploid). However, the occasions of recombination and crossing-over is generally seen by studying the spore habits within the ascus (spore situation of an Ascomycetes). This method is known as tetrad research since the upshot of meiosis in Ascomycetes causes a linear tetrad of haploid spores.