Which type(s) of cells do not have genetic material that is contained in a nucleus?

The type of cell that does not contain a genetic material but has a presence of nucleus is a prokaryotic cell.  The prokaryotic cell are considered to be an organism that is unicellular because of the reason that the organelle that it has are lacking. 

black

lasagna

lunch

math

energy per photon is e = h*c / λ  

e = 6.63*10^-34 * 3*10^8 / 6*10^-7 j = 3.315*10^-19 j  

nr. of photons = 10j / 3.315*10 = ^-19 j per photon = 3.02*10^19 photons