All cells have DNA. The DNA does not depend on the difference in size or shape.
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A red blood cell placed in pure water would "BURST"
This is because water would move in the red blood cell and become hypotonic. It does not have enough space so thats why it bursts.
Answer:
In some primordial soup of molecules, a self-replicating RNA formed.
Explanation:
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The answer to this question is "Dendritic Cells". In addition to m cells, the "Dendritic cells" in the epithelium can capture pathogens directly from the lumen of the gut without disturbing other cells and processes in the epithelium of the epithelial layer.