BIO220H1 Lecture Notes - Lecture 11: The Extended Phenotype, Toxoplasmosis, Cockroach
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BIO220H1 Full Course Notes
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The standard view is that genotype and environment determines phenotype. These are the factors that cause different phenotypes. Dawkins makes an argument called the extended phenotype, which is that genes exert themselves outside the cells. The building of these bowers are one example of the notion that phenotypes are extending outside of the individuals themselves. Things produced in other individuals, where that thing produced in other individuals is part of the original individual who exerts it there phenotype. For example a parasite thing which affects the phenotype of the host, will be considered the phenotype of that animal. One such would be the effects of certain parasites which causes rabies also causes aggression, or the transmission of rabies in animals where the cat feces spreads to mice, which subsequently alters their behavior. Rats affected with the toxoplasmosis pathogen, had conducted a study where rats affected with.
