We have carried out a detailed analysis of the relative amounts of zeta, alpha, beta H1, epsilon y2 and adult beta globin mRNA in different tissues of the mouse embryo from Day 8.5 to Day 17.5 i.e. from the first signs of erythropoiesis until almost the end of gestation (birth is Day 19). Interestingly, we find that the zeta to alpha "switch" occurs 24 hours earlier in yolk sac than it does in fetal liver and that the ratio of zeta to alpha mRNA remains higher in the peripheral blood than in ...Expand abstract
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The globin switch at the level of mRNA in the developing mouse.
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