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muminat
2 years ago
6

Kohler and lipton first discovered a growth factor (pdgf) by:

Biology
1 answer:
Juliette [100K]2 years ago
5 0
<span>Observing that fibroblasts grew better in cell culture when blood serum was added to the growth medium instead of blood plasma. Thus proving that there was a substance in serum that made it easier for fibroblasts to grow.</span>
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