Article View: sci.bio
Article #4767Re: independent assortment?
From: Stephen Modena
Date: Mon, 03 Feb 1992 12:29
Date: Mon, 03 Feb 1992 12:29
35 lines
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2316 bytes
In article <92033.201318U50701@uicvm.uic.edu> U50701@uicvm.uic.edu (Yakof) writes:
>Hello there. I am taking introductory genetics this semester and one of the hom
>eworks asks to explain how 15:1 phenotypic ratio can be obtained from selfing
> F2; it is also specified that P1 were both pure lines. They are talking of mon
>ohybrid cross, by the way, but I do not see any possible way of getting 15:1 p
>henotypic ratio.
>Is anybody there willing to help out?
>Thanks a lot.
Oooops! I got carried away with my cleverness:
AABB x aabb => AaBb (X) => 15/16 A_B_ , 1/16 aabb
AAbb x aaBB => AaBb (X) => 15/16 A_B_, 1/16 aabb
IF these loci are independantly assorting and the game is dominant
epitasis. (It's early, folks, very early in the day.)
Anyway, I'm not sure the problem is well stated, or at least completely
stated. Can't think of a way to get 15:1 without at least two loci
involved.
Have a nice day, Yakof. :^)
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X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 107c0a,d4ec3256b79579ce X-Google-Attributes: gid107c0a,public X-Google-Thread: f5c17,d4ec3256b79579ce X-Google-Attributes: gidf5c17,public X-Google-Thread: 1343d9,d4ec3256b79579ce X-Google-Attributes: gid1343d9,public X-Google-ArrivalTime: 1992-02-03 04:48:16 PST Newsgroups: sci.bio,bionet.molbio.gene-linkage,bionet.molbio.gene-org Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!darwin.sura.net!gatech!taco!nmodena From: nmodena@unity.ncsu.edu (Stephen Modena) Subject: Re: independent assortment? Message-ID: <1992Feb3.122948.26761@ncsu.edu> Sender: news@ncsu.edu (USENET News System) Organization: Computing Center, North Carolina State University References: <92033.201318U50701@uicvm.uic.edu> Date: Mon, 3 Feb 1992 12:29:48 GMT