what type of brightly colourful cells do you look at?

Question: what type of brightly colourful cells do you look at?

Asked by jessicab to Greg on 18 Jun 2010 in Categories: Your Research. This question was also asked by colesyc9, shmue.
- Greg FitzHarris answered on 18 Jun 2010:
  
  Well, we look at lots of types of cells… but mostly eggs!!
  
  we do things to them to make them fluorescent, so we can see where particular things are within the cell — see the images on my profile. The blue is the chromosomes — theryve been labelled with a special dye which you can see only with a ‘fluorescent’ microscope. have you ever seen one of those pens where you writ on the paper and cant see anything until you shine a special little ligth which comes with the pen at it ?? — its a bit like that.
  
  we do this to answer our scientific questions…. but a nice side effect is that the pictures we get are often very pretty!!

Question: what type of brightly colourful cells do you look at?