- Feb 19, 2012
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True, sex linked .it is said that peach is not a mutation by itself.. it is a combined expression of purple and cameo genes due to cross over of one gene on to other. As a result each arm of a Z chromosome contains one half with purple segment and the other half with cameo segment.. The pure peach birds produce peach chicks it is said, But, the genes segregate in "split peach birds", to purple, cameo and peach as well.