3. [2 pts] You will be conducting a multi-color experiment with your favorite cell type using fluorescently-labeled antibodies and have found out that the confocal microscope is equipped with the following lasers: Laser Excitation Emission Wavelength Color (nm) 405 diode 405 Deep blue Argon 488 Green 561 diode 561 Red HeNe 594 Red HeNe 633 Far red The lab manager advising you suggests that you use DAPI to counterstain your samples. What does DAPI stand for and how does it work (what does it "stain")? Which laser will you use to "light up" the DAPI