BIOL359 Lecture 7: Annotated slides -Evolution and Sexual Reproduction
Document Summary
Reproduce asexually volvox can undergo sexual and asexual reproduction may switch back and forth between these types of reproduction depending on the conditions asexuals. Parthenogenesis : aphids parthenogenesis = virgin birth genetic clone offspring no variability ! Obligate parthenogenesis: entire species consist of females only, which reproduce by making identical clones of themselves example of that are the aphids. Organisms that have both male and female sex organs (gonads), and are capable of self fertilization (the strongest form of inbreeding). Note that this is still a form of sexual reproduction because gametes are still formed via meiosis. slugs are an example of self fertilizers. However, the offspring of hermaphrodites are genetically less diverse than the offspring of individuals that outcross. Given that it is a huge hassle: maynard smith proposed a null model to address this question, assumptions: A females reproductive mode does not affect the number of offspring that she can make.
