Please see the following picture:
In my book, the author claims that these chromosomes are in metaphase (a metaphase stopped by cholchicin). I don't understand why they don't have two chromatids...A chromosome looks, by everything I've learned, like TWO chromatids (http://i60.photobucket.com/albums/h1/GameMaster57/Chromosomestructure.jpg) and should be together in metaphase. These chromosomes only look like chromatids to me (1 of 2 pairs).
Have they been separated?
I am also asked to specify which chromosomes are from the father and which are from the mother. How would I go by doing that?