The best instrument to use to separate the liquid portion from the solid portions in whole blood is a(an) a. compound light microscope. c. test tube. b. centrifuge. d. electron microscope.

Centrifuge.

Explanation:

Centrifugation may be defined as the techniques used to separate the different particles on the basis of their physical property. The particles can be separated on their shape, size and molecular weight.

The liquid portion of the blood from the solid portion of blood can be separated by centrifugation. Different components of blood like plasma, RBCs, WBCs and platelets are separated on the basis of their size, weight and density.

Thus, the answer is option (B).

when it's short and dry.

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.