You observe a stickleback embryo and follow the fate of one cell (cell A) at the 64 cell stage. The descendants cells of cell A eventually form the spines on the back of the fish as an adult. In a second embryo you remove the cell (cell B) that is right next to the cell that will form the spines. In this fish the spines do not form, although the cell that would form normally them (cell A) survives. What has happened? Group of answer choices A. Cell B's fate is not determined B. Cell B fails to induce cell A to form the spines C. Cell B fails to differentiate to form the spines D. Cell A fails to induce cell B to form the spines

You observe a stickleback embryo and follow the fate of one cell (cell A) at the 64 cell stage. The descendants cells of cell A eventually form the spines on the back of the fish as an adult. In a second embryo you remove the cell (cell B) that is right next to the cell that will form the spines. In this fish the spines do not form, although the cell that would form normally them (cell A) survives. What has happened? Group of answer choices A. Cell B's fate is not determined B. Cell B fails to induce cell A to form the spines C. Cell B fails to differentiate to form the spines D. Cell A fails to induce cell B to form the spines

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter10: Cell Division And Mitosis

Section: Chapter Questions

Problem 2ITD

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The photo on the left shows an early frog embryo after three mitotic divisions of a fertilized egg. This embryo has how many cells?
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