Genes come in pairs, and each gene in a pair may differ slightly. One gene may be dominant, and override the other gene, which is recessive. A recessive gene only has an effect if both genes in a pair are recessive. An example is eye color. Although this is not as simple as depicted here, blue is the recessive gene, and brown is the dominant gene.
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8 Printable Thank-You Cards for Teachers
As the end of the school year approaches, it's nice to thank your favorite educators for all their hard work. Print any of these free printable teacher appreciation cards to show your gratitude in a cute and simple way.
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