BIOL108 Lecture Notes - Lecture 21: Phytoplankton, Unikont, Cambrian Explosion

• School: University of Alberta
• Department: Biology (Biological Sciences)
• Course: BIOL108
• Professor: Trevor Pasanen

Document Summary

Finish: topic 4 sexual reproduction, parthenogenesis and variation in sex roles. Known in protists, plants, fungi & animals. Already have winning lottery number make more! Considered to be an amazing form of asexual reproduction . Known in many plants, many invertebrates and some vertebrates. Occurs from hybridization, polyploidy, and/or meiotic errors changed due to polyploidy. Many variations of sexual roles in nature be females or males. Jack-in-the-pulpit plant that decides at the end of fall whether they want to. The tiny y-chromosome has about 20 genes. lots of the genes have gone inactive. Diversity and evolution of sexual life cycles. Figure 28. 3 (yellow groups are pure protists), the white are non-protist eukaryotes. (plants, animals and fungi came from protist common ancestry). Endosymbiosis played a key role in photosynthetic eukaryotes (figure 28. 2) photosynthetic) The heterotrophic eukaryote is showing the primary endosymbiosis (first.