Comment on Prove your humanity.
icelimit@lemmy.ml 2 months ago
Why do these agar plates always have two intersecting lines on one side and nothing on the other side? Is it like an environment control thing?
Comment on Prove your humanity.
icelimit@lemmy.ml 2 months ago
Why do these agar plates always have two intersecting lines on one side and nothing on the other side? Is it like an environment control thing?
Little_mouse@lemmy.ca 2 months ago
The standard way to streak a plate involves creating a resevoir of the sample you are studying, then using a sterile tool to streak through that at a steep angle. Then you streak through the first streak with another sterile tool, and so on and so forth.
As you streak through lines, the amount of bacteria pulled along is reduced until you are able to isolate individual colonies.
icelimit@lemmy.ml 2 months ago
Til! Thanks!
Sterile_Technique@lemmy.world 2 months ago
Visual breakdown for anyone interested:
Image
beeng@discuss.tchncs.de 2 months ago
Nice username
icelimit@lemmy.ml 2 months ago
1 through to the end are all made with new, sterile… sticks?
Look ma, I’m a biochemist now!