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Which of the following provides the BEST explanation for why undifferentiated stem cells injected into liver tissue samples then undergo differentiation and become functional liver cells?
Fully differentiated cells produce and secrete chemicals that can affect gene expression in neighboring cells.
Fully differentiated cells can insert fragments of their DNA into neighboring cells via transformation.
Stem cells differentiate into specific tissue type cells independent of their neighboring cells.
Stem cells can fuse with fully differentiated cells and trigger mitotic cell division leading to two fully functional cells.