Stem Cells

Stem cells are

• cells that grow uncontrollably
• undifferentiated and can be any type of cell
• never go through cell division
• only found in embryos

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Stem cells can be obtained from

• embryos
• some adult tissues
• umbilical cord blood
• all of the above

What does "pluripotent" mean?

• able to divide and make many different types of cells
• not able to divide
• can only divide and make one cell type 
• if it divides, it will make a cancerous tumor

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What process best explains how muscle cells and nerve cells can develop from the same fertilized egg?

• genetic engineering
• survival of the fittest
• differentiation
• selective breeding

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Neural stem cells from the brain can differentiate into... 

• only specialized brain cells .
• specialized brain cells and specialized skin cells. 
• all types of specialized cells. 
• only specialized blood cells. 

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Which of the following is NOT a source for stem cells?

• umbilical cord blood 
• early embryos 
• sperm and eggs 
• certain adult tissues 

Why might stem cell research lead to a cure for diabetes?

• Stem cells can be used to grow pancreas cells that produce insulin.
• Stem cells can create babies that have normal functioning pancreases.

Stem cells are

• cells that grow uncontrollably.
• undifferentiated and can develop into many types of cells.
• cells that never go through cell division.
• only found in embryos.

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Stem cells are

• undifferentiated or unspecialized cells in the body.

• differentiated or specialized cells in the body.

• only found in the inner mass cells of blastocyst

• only found in a fetus

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_________ refers to a stem cell's ability to differentiate into other cell types

• potency

• potential

• dormancy

• aptitude

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