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In this study, cancerous and normal skin tissue samples were excised with a scalpel

Biology Jan 28, 2021

In this study, cancerous and normal skin tissue samples were excised with a scalpel. Each skin sample was then placed into a sample tube along with solvent, shaken on a vortex and centrifuged. When the sample tubes came out of the centrifuge, there was a top layer and a bottom layer. For our purposes, we went on to use ______________ for further processing."

 

only the bottom layer

 

none of the options listed

 

a mixture of top and bottom layers

 

only the top layer

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