Pictures from the laboratory
Preparation
of chromosomes from CHO cells
Magnification: 1000x

About 100% confluent, ready to split in a new tissue culture flask

About 10% confluent after the split in a new flask

About 50% confluent after three days of cultivation (after the split)

Slot
1: DNA-Marker
Slot
2: Sample A1
Slot
3: Sample A2
Slot
4: Sample B1
Slot
5: Sample B2
Slot 6: positiv control
(from
left to right)

Result: Both samples (A&B) are
free of mycoplasma!