SCID, for example, bone-marrow precursor cells can be removed, treated and then injected back into place.

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Reversing the onset of Type 1 diabetes by turning adult precursor cells from the spleen into insulin-producing cells is a new approach.

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LINE-1 messengers, suggesting that retrotransposons are active in these precursor cells.

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The mouse work also showed that the retrotransposons were jumping mainly into genes that are active while precursor cells are changing into their destined cell types.

ECONOMIST: Brain development may be influenced by genetic parasites

Sperm, by contrast, are made continuously throughout life, and each division of their precursor cells brings risk of a misinterpretation of the DNA, and thus a mutation.

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The team proposed that a precursor to that cellular pump evolved in the membranes of the proto-cells.

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