Genetics Lab - Introduction Throughout the mid 1800s an Austrian monk named Gregor Mendel worked with pea plants to examine the effects of genetic

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Introduction: Throughout the mid 1800s, an Austrian monk named Gregor Mendel worked with pea plants to examine the effects of genetic crosses and heredity. Throughout his experiments, Mendel examined the passing on of many characteristics in pea plants, including height, pod color, pod shape, and pea shape. Observing the results of his crosses from generation to generation, Mendel found that, for one pair of alleles being examined, “the visible appearance of F 2 is 3:1” (Bateson 58). Upon further tests, Mendel also found that, for two allelic pairs, “the visible appearance of F 2 is 9:3:3:1” (Bateson 59). However, Mendel’s work on heredity went largely unnoticed until the work of three scientists, de Vries, Correns, and Tschermak, brought it once again to the forefront. “Mendel is often referred to as the father of genetics because his work set the foundation upon which modern biology, and especially genetics, is based” (Wellnitz). Methods and Materials: In this lab, my partner and I examined corn from Carolina Biological Supply. The first corn sample was guaranteed to have a ratio of 3:1, purple to yellow kernels. The second corn sample was supposed to have a 9:3:3:1, purple smooth to purple wrinkled to yellow smooth to yellow wrinkled ratio. We counted the kernels of the two corn cobs to ensure these ratios are accurate. On each cob, we found a row with
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This note was uploaded on 10/12/2011 for the course BIOLOGY 100 taught by Professor Smith during the Spring '11 term at South Carolina Upstate.

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Genetics Lab - Introduction Throughout the mid 1800s an Austrian monk named Gregor Mendel worked with pea plants to examine the effects of genetic

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