Login

Join for Free!
112462 members


Epistasis vs. Polygenic Inheritance

Genetics as it applies to evolution, molecular biology, and medical aspects.

Moderator: BioTeam

Epistasis vs. Polygenic Inheritance

Postby Edher » Thu Mar 03, 2005 7:49 am

Saludos,

What is the exact difference between Epistasis and Polygenic Inheritance?

Thank You,
Edher
Edher
Garter
Garter
 
Posts: 37
Joined: Sat Jan 29, 2005 6:19 pm

Postby mith » Thu Mar 03, 2005 8:30 pm

I don't remember epistasis but polygenic inheritance is when a single trait is determined by more than one gene.
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN

Postby jonofbridger » Thu Mar 03, 2005 8:55 pm

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.
jonofbridger
Garter
Garter
 
Posts: 13
Joined: Thu Mar 03, 2005 2:05 am


Postby Jelanen » Fri Mar 04, 2005 1:11 am

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
Jelanen
Inland Taipan
Inland Taipan
 
Posts: 218
Joined: Fri Mar 04, 2005 1:00 am
Location: The Lab


Return to Genetics

Who is online

Users browsing this forum: No registered users and 1 guest

cron