A judge has been expected to rule in a court battle between Penney and Macy's over whether Macy's has an exclus | ASSOCIATED PRESS. 24/7 Wall St. : Brick-and-mortar retailers have been suffering from slow economic activity for years, as well as from increased competition from online retailers. The rise in store closings is a prominent sign of their struggles.
Gel electrophoresis is one of the principal tools of molecular biology. The basic principle is that DNA, RNA, and proteins can all be separated by means of an electric field and size.
In order to do these investigations, scientists use several tools for experimentation. Basic research equipment includes tools that can be used for measuring lengths, mass, and volume. One of the most basic pieces of equipment used in the measuring of volume is the volumetric flask. Let's discuss the volumetric flask and its use in scientific experiments.