Skylar Smith
Jordan Stotts
Kaley Felix
Ana Charvet
Southwest CTA
Biology 9H p.6
February 13, 2014
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Abstract
A gene can be defines as the basic physical unit of heredity; a linear sequence of nucleotides along a segment of DNA that provides the coded instructions for synthesis of RNA, which, when translated into protein, leads to the expression of hereditary character. An allele is a any of several forms of a gene, usually arising through mutation, that are responsible for hereditary variation. Our experiment was formed to study the allele frequency in a single trait caused by a single gene. We conducted a survey to review the phenotype population of people at Southwest CTA. The research was organized to find the allele and genotype frequency of people who use their right hand versus their left hand. The data showed that the dominant allele was more frequent than the recessive, and the genotype frequencies amongst the three were not equal. After studying the chi-squared tests, we have decided to reject the null hypothesis because there was a significant difference across the three genotypes.
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Introduction
Alleles are stated by most dictionaries as “one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.” They are what makes you look and act like yourself and how your traits are formed. Your alleles are passed down to you by your parents, which in turn, were passed down from their parents, so on and so on. Common allele traits are blood type, eye color, hair color, hairline and skin color. There are dominant and recessive traits. The dominant trait is the trait that you inherit, while the recessive trait is the trait that is