2007-01-22 09:56:49 · 4 answers · asked by mayo 2 in Science & Mathematics ➔ Biology
Do you mean a dirty agar plate or actual dish?
If either one is dirty, there's probably lots of bacteria (since it's everywhere) that'll grow; you'll have a huge mix of different organisms.
If you swabbed something else on a dirty (agar) plate, then your results are contaminated. You'd have to chuck the plate, and reswab a sterile plate.
2007-01-22 10:03:36 · answer #1 · answered by joie_du_cor 3 · 0⤊ 0⤋
Make some agar- you have to buy the mixture for it- then pour it into a petri dish. After that, swab whatever it is you want to swab to get your sample of bacteria. Then you place the bacteria sample into an autoclave or some place nice and warm so that the bacteria will grow.
There should be bacteria the next day.
2007-01-22 18:32:58 · answer #2 · answered by Anonymous · 0⤊ 0⤋
yeah sure! but you need an enriched agar such as blood agar why? cuz you dont know why kind of organism u have in ur dirty plate. organisms grow in enriched agar
2007-01-23 12:06:33 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Yep
2007-01-22 18:35:36 · answer #4 · answered by juneaulady 4 · 0⤊ 0⤋