cell specialization

What is a key characteristic of stem cells?

• Cells that are already specialized for a specific function.

• Cells that only divide to create identical copies of themselves.

• Undifferentiated cells that can develop into various cell types.

• Cells found only in plants and not in animals.

How do stem cells differentiate into specialized cells?

• By acquiring new DNA from their environment.

• By turning on and off specific genes within their existing DNA.

• By undergoing meiosis to reduce their chromosome number.

• By physically changing their location within the organism.

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Which of the following can act as a cue for stem cell differentiation?

• Only external environmental factors like temperature.

• Only internal factors like transcription factors.

• Both internal factors (e.g., transcription factors) and external factors (e.g., cell signaling).

• The age of the organism.

What is a potential benefit of using induced pluripotent stem cells (iPSCs) for medical treatments?

• They eliminate the need for any form of cell division.

• They can be used to create tissues or organs with a lower risk of rejection.

• They are only found in embryonic stages, avoiding ethical concerns.

• They are easier to extract than somatic stem cells.