Question

Our neighbours have ____ cat and ____ dog. (MCQ - CHOOSE ONE) • a • an • the​

Answer 1

Answer:

Centrifugation is a method of separating molecules having different densities by spinning them in solution around an axis (in a centrifuge rotor) at high speed. ... Centrifugation is used to collect cells, to precipitate DNA, to purify virus particles, and to distinguish subtle differences in the conformation of molecules.