Source: GENETIC LITERACY PROJECT, 3/2/18


Genes are bits of DNA which determine all sorts of traits and characteristics in any organism, from size to what chemicals certain cells express. Some genes offer traits that allow certain animals or plants to thrive in their environment, so these genes will be passed along. In time, with many generations, these genes will become common in the population. Our ancestors unwittingly sped up this process when they saved the seeds of the best crop plants to grow them next …

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