Sci 230 Essay

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Gregor Mendel: Patterns of Inheritance Shaakira Mitchell Intro In the mid-19thcentury, Gregor Mendel developed basic hereditary concepts which became the basis of the modern science of genetics. In developing this, he stated that each parent is only responsible for giving half of his / her genes to its offspring, and if there are different offspring from same set of parents the gene pool is much more varied. He also determined that many of the characteristics are polygenic, which means that they are influenced by more than one gene. He also determined that many genes come in many different variations (alleles) within a population. The combination of both the polygenic and allelic traitsopens up the possibilities of the hereditary characteristics. An individual’s hereditary makeup can control the features that an individual may develop as they grow, however the way a persons’ actual features develop (which is known as the phenotype) will depend upon the interactions of a person’s genes and their environment. Mendel made it a point to spend a lot of time studying experiments on plants;his main choice of study was known as a common garden pea. During several years Mendel planted thousands of pea plants in his Monastery garden. His emphasis was to study several pairs of plants to determine the differences between them whether it was in size, color, length or width. He spent several years perfecting this experiment and cultivating many different pea plants, self-pollinating them and wrapping them, to avoid any chances of accidental pollination by any undesirable insects. It was during his observation that he discovered that some of the plants bred true and others did not, in fact by crossing a tall plant and a short tree, he often got a hybrid which resembled the taller plant rather than the shorter one. His explanation brought about the
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