Biology! Lab Report on Evolution

Topics: Evolution, Allele frequency, Population genetics Pages: 4 (1210 words) Published: February 28, 2012
An experiment was done to determine the allele frequencies for a gene in a model population and to describe the affect of natural selection on this population. The Hardy-Weinburg theorem states that the gene pool of a non-evolving population remains constant over generation but the natural effect of Hardy-Weinburg’s equilibrium by selecting the individuals who are most fit for the environment, and allowing them to reproduce more of the genotype that is allowing them to survive. The equation for Hardy-Weinburg equilibrium uses the letter p to represent the frequency of one allele q for the other allele. The sum of both allele add up to one or one hundred percent for that population. To calculate the frequency we use

There are five conditions in order satisfy the Hardy-Weinburg’s equilibrium. These are, mutation, gene flow, genetic drift, non-random mating and selecting. Evolution does not occur in individuals, it occurs in a population. Charles Darwin theory of natural selection states that natural selection acts to preserve and accumulate minor advantage to any trait that helps them to Bette suited for survivals. The purpose of this is to help us understand better about Evolution and Mother Nature also the relationship between evolution and changes in allele frequency using a sample population. The null hypothesis for this experiment is that the flashier the male are more attractive they will become to the female and predators. This will lead to the decrease of population and changes in the population. The frequency for the color fishes will decrease as time passes.

For this particular experiment we had two different lab tests. For the first part of the experiment it was necessary to use a computer and log on the and lunch the Sec and the Single Guppy web activity. Running the simulation on the web site and selecting “I’m ready to find out” will start the...
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