BIOA01H3 Chapter Notes - Chapter 22.1: Speciation, Species Problem

• School: UTSC
• Department: Biological Sciences
• Course: BIOA01H3
• Professor: Mark Fitzpatrick

Document Summary

A group of individuals that can exchange genetic material through interbreeding to produce fertile offspring. Fluid and capable of changing giving rise to new species. Genomes of multiple organisms form clusters based on similarity. Mutations can spread such that all individuals . Concept that species are groups of actually or potentially interbreeding populations that are reproductively isolated from other such groups. Members of same species can reproduce while different species cannot. Reproductively isolated: incapability to produce fertile offspring. Hybrid offspring that is infertile is a genetic dead end. Cannot pass down its genes to next generation. Morphospecies concept: each other more than like other species. Members of same species usually have similar dna sequences which are. Members of the same species do not always look alike. Members of different species may look alike. Individuals that can display different phenotypes distinct from those of other species. Species with populations that are reproductively isolated but not genetically isolated.