Chromatids That are Attached at the Centromere are Called ____

Question

Chromatids that are attached at the centromere are called ____ chromatids.  
A) mother
B) daughter
C) sister
D) programmed
E) either mother or daughter

Accepted Answer

Chromatids that are attached at the centromere are called sister chromatids. The term "sister" refers to the fact that these chromatids are identical copies of each other resulting from DNA replication in the S phase of the cell cycle.