Biology Forum › Genetics › Epistasis vs. Polygenic Inheritance
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March 3, 2005 at 7:49 am #456EdherParticipant
Saludos,
What is the exact difference between Epistasis and Polygenic Inheritance?
Thank You,
Edher -
March 3, 2005 at 8:30 pm #20001mithParticipant
I don’t remember epistasis but polygenic inheritance is when a single trait is determined by more than one gene.
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March 3, 2005 at 8:55 pm #20005jonofbridgerParticipant
I think epistasis is when you have a pair of genes that control the same trait where one set is dominant masks whatever the other set is.
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March 4, 2005 at 1:11 am #20014JelanenParticipant
Epistatis is a form of gene interaction in which one gene masks the phenotypic expression of another. Polygeneic inheritance is when multiple genes are involved in the phenotypic expression of a single trait. Its not really an either or thing, I’m sure (though I can’t think of one off the top of my head) that there are epistatic elements to some polygenic traits.
-Jelanen
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