why do some colonies appear with blank center? and can two colonies be fused?
- Anonymous1 month ago
Two colonies can fuse if they are of compatible type.
- ?Lv 71 month ago
One possibility is that the bacteria in the center have already died OR migrated. They use up resources in the middle / leave waste products, and the motile ones then swim away.
Yes, two colonies can fuse. You're doing your serial dilutions to reduce that happening.