Question:
What technique was used to make the grey band become
Last updated: 4/30/2023
![What technique was used to make the grey band become](https://media.kunduz.com/media/sug-question-candidate/20230430052151138903-5005644.jpg?h=512)
What technique was used to make the grey band become narrower and narrower in the image below HOURS 21 8 5 10 7 12 0 14 9 IZI 19 2 21 3 Chromatography ODNA replication 0000 Density gradient centrifugation O Microscopy