Think yeast cultures expressing different colors under fluorescent lights, or cheese made not from cows but from microorganisms implanted with genes for milk proteins.
Not exact matches
To be honest I don't
think the
yeast is necessary to start this or any other sour dough
culture.
But although you might
think of
yeast as growing in the featureless soup of a lab
culture, wild
yeast typically live a more structured life — in colonies.