Ahh...my classmates are all asking me this. What is the difference between those? Chromosomes is (>) right? Then When they duplicate its sister Chromatids (X)? Then during mitosis anaphase, they get pulled back into (>) correct? Please, someone help confirm. Note: This is not the X, Y thing, but Just how they are shaped. Thanks in advance. And Chromatin is the collective chromosomes after they are condensed?