GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2001-02 > 0982618127
Subject: Re: [DNA] Dominant and recessive
Date: Mon, 19 Feb 2001 16:28:47 EST
In a message dated 2/19/2001 6:47:00 AM Pacific Standard Time,
> Back to the question of dominant and recessvie: is
> it not true that dominant and recessive are not as
> clear-cut as usually explained in General Biology
> classes, and ordinarily, only biology majors
> tackle Genetics.
>That's for sure -- in fact, NOTHING is as clear-cut as usually explained
>There's the concept of penetrance, for example -- whether or not the genetic
>trait is actually expressed may depend on other factors.
And don't forget Incomplete Penetrance. Nothing is as it seems. *sigh*