You Are Examining an Electron Micrograph of Cells Obtained from a New

Multiple Choice

You are examining an electron micrograph of cells obtained from a new deep- sea life form. Upon closer examination, you notice that there are two dark lines separated by a lightly stained region. These results are similar to the observation of which person's or persons' investigation into membrane structure?

A) Singer and Nicolson
B) Gorter and Grendel
C) Overton
D) Unwin and Henderson
E) Robertson