The first step in two-dimensional gel electrophoresis generates a series of protein bands by isoelectric focusing. in a second step, a strip of this gel is turned 90 degrees, placed on another gel containing sds, and electric current is again applied. in this second step

Why does the united states constitution require that a national census be taken every ten years?

The united states constitution is a finely crafted document that was written to last, for the sake of a. currency b. preamble c. ordainment d. posterity

Sandra lives in the heart of a large city. lately, there have been robberies on several of the streets near where sandra lives but none on her street. sandra and her neighbors believe that they have not seen any crime on their street because they know each other, notice when strangers or strange cars are in the neighborhood, and have a mix of old retired couples and young families who use the neighborhood at different times of the day. jane jacobs would see this as an example of: