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Hardy-Weinberg intro

Hardy-Weinberg intro - Introduction After creating the...

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Introduction: After creating the theory of natural selection, Charles Darwin was criticized for his lack of reasoning as to how populations evolved. Darwin believed certain traits were inherited from parent to offspring; however, he failed to grasp a complete understanding of exactly how this occurred. It was not until Mendel introduced the idea of alleles, genotypes, and phenotypes. Gregor Mendel studied the different traits of a common garden pea. He crossed a population of garden peas and observed the offspring’s physical traits in comparison to the parent’s. Eventually, he noticed that dominant and recessive alleles became apparent when two plants, each with two different alleles, crossed. Each parent contributed an allele, which would create the genotype for their offspring. This offspring then depicted the phenotype corresponding to its genotype. The phenotype depicted by a carrier, a individual consisting of both dominant and recessive allele, would depict with allele is more dominant (Bizzo et al. 2009).
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