Pleiotropy is when one gene controls multiple phenotypic traits that may or may not be related. It's like a single gene that can cause a disease with many different symptoms.It is one gene that can control the apperance, or other details, of multiple different traits. I took the picture of peas because when Gregor Mendell was studying traits he used pea plants to help him understand things like pleiotropy.
Pleiotropy. (2008, September 22). Retrieved from http://www.biology-online.org/dictionary/Pleiotropy
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