Tuesday, January 25, 2011

Genetics in Food


Varieties of Heirloom Tomatoes
Example of Sicilian Lemon
There are no genetically modified foods in Serbia, however both fruits and vegetables have unique phenotypes pertaining to the area. Color, shape, size, taste are all observable phenotype differences. For example: tomatoes in Serbia are slightly different than the same variety in Mexico. Why is this so? The environment the tomatoes are grown in directly affects the characteristics of the fruit. Climate, soil, chemical exposure, and other factors influence the dominant genes of the fruit. Plants, unlike humans are affected not only by their direct "parents" but also by the surrounding area. The same or similar genetic mutations take place because of the environment. Bees or birds spread the pollen of the plant, resulting in an area with similar phenotypes. Slight differences in temperature or soil acidity will affect the phenotypes. Over time, entierly new species are developed.                              
Thai Lemon


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