Which Technique or Study Would Be Most Useful in Testing

Multiple Choice

Which technique or study would be most useful in testing the hypothesis that "the fate of the cells in an early fish embryo is irrevocably determined"?

A) Transplanting cells from one region to another
B) Monitoring gene expression in the cells and looking for differences in different regions
C) Examining structural differences among cells in different regions by means of a light microscope
D) Using nuclear transfer procedures
E) Observing whether the cells are undergoing apoptosis