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- 1. Multiple ChoiceNeural 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.
- 2. Multiple ChoiceWhich of the following is NOT a source for stem cells?umbilical cord bloodearly embryossperm and eggscertain adult tissues
- 3. Multiple ChoiceWhy 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.
- 4. Multiple ChoiceStem cells arecells that grow uncontrollably.undifferentiated and can develop into many types of cells.cells that never go through cell division.only found in embryos.
- 5. Multiple ChoiceStem cells are used to __________.make clonescreate new species of animalsmake babiesgrow different types of tissues
- 6. Multiple ChoiceWhich of the following cells is undifferentiated?cardiac muscle cellnerve cellliver cellstem cell
- 7. Multiple ChoiceWhat process best explains how muscle cells and nerve cells can develop from the same fertilized egg?genetic engineeringsurvival of the fittestdifferentiationselective breeding
- 8. Multiple ChoiceWhich best explains why muscle cells are different from blood cells?Muscle cells are produced by the brain, but blood cells are produced by the heart.Different genes are activated in muscle cells than in blood cells.Muscles cells experience different environmental influences than blood cells.A mutation occurs during the development of muscle cells but not in blood cells.
- 9. Multiple ChoiceWhat is the difference between embryonic stem cells and adult stem cells?Embryonic stem cells can differentiate into more cell types than adult stem cellsAdult stem cells are pluripotent, just like embryonic stem cellsAdult stem cells can differentiate into more cell types than embryonic stem cellsAdult stem cells grow bigger than embryonic stem cells
- 10. Multiple Choice
Medical research involving stem cells is important for ...
to test the effectiveness of new drugs
the generation of cells and tissues that can be used in cell based therapies
to understand the consequences of turning genes off and on
All of the above
- 11. Multiple Choice
This type of cell sends messages throughout the body in the form of electrical impulse.nerve cellsperm cellmuscle cellskin cell - 12. Multiple ChoiceThis type of cell carries oxygen throughout the body.gameteplateletwhite blood cellred blood cell
- 13. Multiple ChoiceThis type of cell fights infection.red blood cellplateletwhite blood cellantibacterial cell
- 14. Multiple ChoiceWhich is true about embryonic stem cells?They no longer divide, their cell type is set and cannot change.They can develop into only one type of cell.They can become any cell type in the body.They are found in adults.
- 15. Multiple ChoiceHow do stem cells know what type of cells to differentiate into?The nucleus has instructions to turn some genes on and some genes off.Signals from chemicals in the organism or from the environment determine which genes will be turned on and off.Genes turn on and off randomly.The cell has unique DNA that determines what the cell will become.
- 16. Multiple ChoiceWhich type of cell is unspecialized?skin cellstem cellliver cellmuscle cell
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