3131272
Descripción
Test por PEDRO ÁLVAREZ JIMÉNEZ, actualizado hace más de 1 año
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Creado por PEDRO ÁLVAREZ JIMÉNEZ
hace más de 9 años
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Pregunta 1
Pregunta
Tissue stem cells are found in our bodies. They can…
Respuesta
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All make every type of cell in our body
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Make only the cells found in their own tissues
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Make embryonic stem cells
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Make only red blood cells
Pregunta 2
Pregunta
Embryonic stem cells are ‘pluripotent’. This means they can…
Respuesta
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Make only the types of specialized cells found in the early embryo
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Make all the different types of specialized cells found in the body
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Make special ‘factors’ that change all other cells into stem cells
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Copy themselves
Pregunta 3
Respuesta
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That embryonic stem cells are pluripotent
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That sometimes development goes backwards in our bodies
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That specialized cells can be reprogrammed to behave like tissue stem cells
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That specialized cells can be reprogrammed to behave like embryonic stem cells
Pregunta 4
Pregunta
Reprogrammed cells are also called iPS cells. What does ‘iPS cells’ stand for?
Respuesta
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Induced pluripotent stem cells
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Induced particulate stem cells
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Inductable pluripotent stem cells
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Individual pluripotent stem cells
Pregunta 5
Pregunta
A major difference between embryonic stem cells and iPS cells is…
Respuesta
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iPS cells can make more types of specialized cells than embryonic stem cells
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iPS cells can only be made from animal cells
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iPS cells can be made from an individual patient’s cells
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iPS cells are found in our adult bodies
Pregunta 6
Pregunta
Scientists expect iPS cells to be useful for…
Respuesta
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Studying what goes wrong in diseases
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Testing drugs on human cells
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Making cells to be transplanted into patients
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None of the above
Pregunta 7
Pregunta
Can iPS cells already be used to make cells for transplantation into patients?
Respuesta
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Yes but only for genetic diseases
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No and scientists are sure they will never be used to make cells for transplants
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Not yet. Scientists need to understand reprogramming better to develop therapies
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Yes but only if the patient requests iPS cells
Pregunta 8
Pregunta
Why do some people think iPS cells might help answer some ethical questions?
Respuesta
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iPS cells can be made without destroying an embryo
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iPS cells are artificial so we don’t have to worry about ethics
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Shinya Yamanaka is a doctor so we can trust him
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iPS cells are easy to make so it’s too late to think about ethics
Pregunta 9
Pregunta
iPS cells could in theory be used to make sperm and egg cells. This means…
Respuesta
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Scientists have already made a new human being from a piece of skin
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In the future, iPS cells may be useful for helping infertile couples
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iPS cells can breed with each other in a dish
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None of the above
Pregunta 10
Pregunta
What do scientists think are some important advantages of iPS cells?
Respuesta
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They could be used to make cells for an individual patient that would not be rejected
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They will make it easier to identify drugs that are likely to work in humans
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They are very useful for studying inherited diseases
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All of the above
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