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Subject: Re: [DNA] number of repeats a cardinal number? WAS: Re: E3b's inEngland - a ...
Date: Wed, 11 Oct 2006 15:07:31 EDT
In a message dated 10/11/2006 11:01:13 AM Pacific Daylight Time,
writes:
> Ah again! So 12.3 is not really a fractional number. It stands for 12
> repeats plus 3 bp! It would be 154+3=157 bp though. DYS489I with 12
> repeats is listed as 154 bp at the SMGF website.
Right you are! I'm glad somebody actually reads my posts and checks them out.
And it's DYS389-1, not DYS489 <g>. Different companies may use different
primers (shifted a few bases to one side or another), depending on how well they
work with a multiplex test. Multiplex tests allow you to combine tests for
several markers, but you have to make sure that the length of one PCR product
doesn't obscure the presence of another peak.
Ann Turner
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