Who suggested that peppered moths were an example of natural selection

Natural Selection and Mutation: The Case of the Peppered Moth Global Change 1 Lab Exercise

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Objective

The purpose of this lab exercise is to model the effects of natural selection on the appearance and genetic make-up of a natural population (the peppered moth).

We will construct a STELLA model for this population that incorporates the basic principles of population genetics. Before we begin, we will need to define some important genetics terminology:

• Alternative forms of a gene are called alleles.
• The genetic constitution of an individual is called its genotype.
• The physical expression of a genotype is called the phenotype.
• If two alleles are identical, an individual is said to be homozygous for that gene; if two alleles are different, the individual is said to be heterozygous.
•A dominant allele has such a strong phenotypic effect in heterozygous individuals that it conceals the prese