Since I have been asked to review a large field of biologic research in a few minutes, it will be necessary for me to limit the presentation to an elementary outline. At the outset I believe I can do no better than to quote a few sentences from the address of Prof. E. B. Wilson before the Royal Society in 1914 on a similar subject: "The Bearing of Cytological Research on Heredity."
The aim of cytology, in so far as it bears directly upon the problems of heredity, is to trace out in the individual life the history of maternal and paternal elements originally brought together in the fertilization of the egg.... This (aim) has been most clearly realized through the study of the cell nucleus, and in particular of the bodies known as chromosomes. I ask attention especially to these bodies... not because the chromosomes are the only elements
METZ CW. THE CELLULAR BASIS OF INHERITANCE. Arch NeurPsych. 1925;13(1):26–36. doi:10.1001/archneurpsyc.1925.02200070029002
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