Which of the following techniques or studies would be most useful in testing the hypothesis that "The fate of the cells in an early fish embryo is irrevocably determined"?
A) Monitoring gene expression in the cells and looking for differences in cells in different regions
B) Transplanting cells from one region to another
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 would allow for testing the hypothesis that the fate of cells in an early fish embryo is irrevocably determined. If the fate is determined, then the transplanted cells should take on the fate of the cells in the region they were transplanted to. If the fate is not determined, then the transplanted cells should be able to take on a different fate. Monitoring gene expression and looking for differences in cells in different regions, examining structural differences among cells in different regions, and observing whether cells are undergoing apoptosis could all provide valuable information, but none of these methods specifically test the hypothesis in question. Nuclear transfer procedures could potentially also provide useful information, but it is not specified how they would be used to test the hypothesis, so it is not the best choice.

Which of the Following Techniques or Studies Would Be Most