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24 Aug 2019

In the process of mitosis that starts from zygote, how dodifferent cells appear? What happens that some cells become onetype and some another?

For example, is there a cell that divides into a blood cell anda skin cell?

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Trinidad Tremblay
Trinidad TremblayLv2
27 Aug 2019

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Related questions

1. Explain how cells regulate mitosis.

2. If a cell is unable to regulate mitosis, what is the result? Explain what can cause this inability to regulate mitosis.

3. Finally, perform some research on the p53 gene and explain its role in the cell cycle and what happens when this gene become mutated.

Which of the following statements about stem cells are true.

CHECK ALL THAT APPLY

When a stem cell divides, each new cell has the potential either to remain a stem cell or become another type of cell with a more specialized function.
Stem cells are unspecialized cells capable of renewing themselves through cell division, sometimes after long periods of inactivity.
Stem cells, under certain physiologic or experimental conditions, can be induced to become tissue- or organ-specific cells with special functions.
Stem cells have the remarkable potential to develop into only one single cell type in the body during early life and growth.

1. Read the article "Stem Cells Used in Landmark Therapy forFailing Sight".http://www.newscientist.com/article/dn26220-stem-cells-used-in-landmark-therapy-for-failing-sight.html#.VHYmRcnt9z8

2. In the article, scientists turned skin cells intoundifferentiated stem cells (call iPS cells) and then turned theundifferentiated stem cells into eye cells. Use your model toexplain what would have to happen for a skin cell to become anundifferentiated stem cell and then what would need to happen forthe undifferentiated stem cell to become an eye cell.

3. Your friend claims that eye cells and skin cell containdifferent genes (i.e. have different DNA sequences). Does theconversion of skin cells to stem cells to eye cells support orrefute your friend's claim? Explain, at the molecular level, howthis evidence supports or refutes the claim.

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