Abstract
WE have shown that an imprinting procedure influences the rate of incorporation of 3H-lysine and 3H-uracil into acid insoluble fractions from the upper part of the chick's fore-brain1,2. These incorporation rates reflect, although they do not accurately measure, rates of protein and RNA synthesis respectively. The effects of the imprinting procedure on the chick's brain could be brought about in a number of ways, for example, hormonal changes, frustration or increased locomotor activity, which need bear no direct relation to the imprinting process.
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References
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HORN, G., HORN, A., BATESON, P. et al. Effects of Imprinting on Uracil Incorporation into Brain RNA in the “Split-brain” Chick. Nature 229, 131–132 (1971). https://doi.org/10.1038/229131a0
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DOI: https://doi.org/10.1038/229131a0
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