In preparing a karyotype, a blood sample is centrifuged to separate the blood cells from the plasma. The plasma is discarded and a hypotonic solution is added to make the cells swell. The solution is centrifuged again. A drop of this material is added to a slide, dried, and stained. The slide is viewed and photographed.
Based on this procedure, where is the best place to discard plasma?
A.
In a laboratory sink
B.
In the trash can
C.
In a trash bin marked biohazardous material
D.
Left on the table for the janitor to get rid of