For example why does a skin cell has a copy of how to make blood cells if their only job is just to do skin cell things?
In: Biology
I think, and I may be wrong. All cells come from stem cells which are like cells without a specific job yet and so the stem cell has the data/possibility to perform any job. And once it gets selected to become a blood cell or skin cell it just still has the data for the whole DNA even though it’s not using it. But that’s just my supposition
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