David Johnston dmj7 at
Wed Jan 19 21:23:08 EST 2000

Genus:  Yes
Species:  Yes
Strain:  Depends, but some strains are defined on other attributes.  I
wouldn't count on this one.

On Mon, 17 Jan 2000 06:06:47 GMT, "Anson Li" <ansonli at>

>Hi everyone,
>This may seem stupid...but I've always wondered about PCR ribosomoal
>typing.  If we amplify out the rRNA variable region, can we narrow
>a bacteria down to its genus level?  species?  or all the way down to its
>strain level?

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