yeast mating

[Sandy Silverman]

You could just try streaking out the mating mix and pick bigger colonies 
that arise (probably diploid).  Check budding pattern after growth in liquid.
Also, compare size under the scope to known haploid and diploids.  These are 
all easy to do, unless you really need a SELECTION.
--
Sanford Silverman                      >Opinions expressed here are my own<
American Cyanamid  
silvermans at pt.cyanamid.com     			"Yeast is Best"