3. Bobby is finally starting to understand genetics and decided to go to a conference. At this conference there is a lecture on genetic mapping in eukaryotes. Bobby is eager to learn and is taking detailed notes. The speaker was taking about spores and how these are found in a tetrad. There were three different possible assortments of the two studied genes in the tetrad: parental ditype, tetratype, and nonparental ditype. Bobby highlighted the terms he didn't understand. Define and explain these terms in your own words. .