Prometheus, or, biology and the advancement of man / by H.S. Jennings.
- Herbert Spencer Jennings
- Date:
- [1925]
Licence: Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0)
Credit: Prometheus, or, biology and the advancement of man / by H.S. Jennings. Source: Wellcome Collection.
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![PROMETHEUS of development in the individual, are subject in high degree to change by the surrounding conditions. Already men have learned to draw ofí these chemicals from one individual and introduce them into another, so altering profoundly its development. Already they have manufactured certain of these products of the genes. How far may this go in a thousand years ? The fact that in the products of the chromosomal genes we are dealing with chemicals that can be made, modified, and moved about, as other chemicals are, opens an unlimited field for pro¬ gress in the control of development. There is no a priori reason why anything that may be done by a chemical pro¬ duced from an individual's own genes may not be done equally by a chemical introduced in some other way. Short- [46]](https://iiif.wellcomecollection.org/image/B18032576_0049.JP2/full/800%2C/0/default.jpg)