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

Question

Quizplus · Accepted Answer

Transplanting cells from one region to another is the most direct way to test the hypothesis that the fate of cells in an early fish embryo is irrevocably determined. If cells from one region can be successfully transplanted to another region and still develop into their original fate, it would suggest that the initial fate was not predetermined. Other techniques, such as monitoring gene expression or examining structural differences, could provide valuable information but would not directly test the predetermined fate hypothesis. Using nuclear transfer procedures or observing apoptosis would not be useful for testing this hypothesis.

Which Technique or Study Would Be Most Useful in Testing