BIO 201 Lecture Notes - Lecture 10: Net Reproduction Rate, Exponential Growth, Heterozygote Advantage
29 Jun 2016
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Document Summary
One of the only well-known examples of heterozygote advantage. Normal/sickle = in rare cases can have symptoms of anemia, resistant to malaria. Sickle/sickle = severe anemia, usually die at a young age. In areas where malaria is prevalent, normal/sickle genotype has the highest fitness. This maintains the sickle allele in the population. Count individuals over many time intervals (e. g. years, seasons) Population growth rate: r = (b d) r = net reproductive rate. = the average population per capita birth rate d = the average population per capita death rate r > 0 (growth) r < 0 (reduction) and d (r) are assumed to be constant. N / t = dn / dt = rn. N = population size t = time r = net reproductive rate. Number of individuals that in a population that can be supported in an environment indefinitely. The following terms need to be added: (k n) / k.
