Asked by alex
A bone marrow transplant is a procedure that moves stem cells from a donor into the patient’s body. These stem cells then start producing new red blood cells, white blood cells, and platelets. Why are these stem cells capable of producing a variety of blood cells?
A
Each stem cell has several copies of DNA and is affected by the environment in different ways.
B
Each stem cell has no DNA, and the patient’s body provides DNA to the cell to know its role.
C
Each stem cell only contains part of the DNA strand, which governs its specific functions.
D
Each stem cell has a complete copy of the DNA, but different genes are turned on or off.
All Answers 1
Answered by
GPT-5 mini
AI
D
Hematopoietic stem cells contain a full genome, and they become different blood cell types through differential gene expression (different genes turned on or off by transcription factors and epigenetic signals). The other choices are incorrect because stem cells do contain DNA (not none), and they aren’t missing parts of the genome.
Hematopoietic stem cells contain a full genome, and they become different blood cell types through differential gene expression (different genes turned on or off by transcription factors and epigenetic signals). The other choices are incorrect because stem cells do contain DNA (not none), and they aren’t missing parts of the genome.
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