What is a CFU? and How is a CFU obtained?

TRUE/FALSE: bacteria within a colony forming unit (CFU) are generally considered genetically similar because they originated from the same mother cell through binary fission. However, small genetic changes can still occur over time due to mutations.

Based on the figure, what mistake, if any, may have been made during the streak isolation?

Which of the following transitions within an atom would yield a photon of the shortest wavelength?

The element with the electron configuration [Kr] 5s24d105p4 is

What is the correct formula for potassium sulfite?

What is the element with the lowest electronegativity value?

The ion ICl4– has ____ valence electrons.

What is the approximate energy of a photon having a frequency of 4 x 107 Hz? (h = 6.6 x 10-34 Js)

Explain the differnece between total coliform, e. coli, and E. coli 0157:H7