Commentary: Discussion of ‘The history of twins, as a criterion of the relative powers of nature and nurture' by Francis Galton (1875).
نویسنده
چکیده
The classical twin study, wherein the similarity of monozygotic (MZ) twins is compared with that of dizygotic (DZ) twins to estimate the heritability of a trait (proportion of total Variance due to genetic
منابع مشابه
?The History of Twins, As a Criterion of the Relative Powers of Nature and Nurture? (1875), by Francis Galton
In the article ?The History of Twins, As a Criterion of the Relative Powers of Nature and Nurture,? Francis Galton [2] describes his study of twins. Published in 1875 in Fraser?s Magazine in London, England, the article lays out Galton?s use of twins to examine and distinguish between the characteristics people have at birth and the characteristics they receive from the circumstances of life an...
متن کاملThe history of twins, as a criterion of the relative powers of nature and nurture (1,2).
THE exceedingly. 'close resemblance attributed to twins has been tbe subject of many novels and plays, and most persons have felt a desire to know upon wbat basis of trutb those work. of fiction ma~ rest. Bnt twins have many otb&r claims to attention, one of whldh will be discussed in the present memoir. It is, that their history affords means of distinguishc ing between tbe effects of tendenci...
متن کاملCommentary: Francis Galton, twins and intelligence.
Well before the rediscovery of Mendel’s principles in 1900, Francis Galton in 1875 was clever enough to recognize the potential that twins had for determining whether a character was inherited or not. Although he did not use the terms, he recognized that identical or monozygotic (MZ) twins arose from the same ovum whereas non-identical twins or dizygotic (DZ) twins were produced from separate o...
متن کاملEvelyn Fox Keller : The Mirage of a Space Between Nature and Nurture Duke
For well over 100 years, some scientists have been interested in disentangling how nature and nurture affect the development of people’s characteristics. After all, some characteristics appear uninfluenced by the contexts in which development occurs, whereas others appear very much affected by developmental environments. To choose two obvious examples, skin color appears to be little affected b...
متن کاملWho discovered the twin method?
The twin method is usually credited to Francis Galton's 1875 article on twins. However, Galton did not propose the comparison between identical and fraternal twin resemblance which is the essence of the twin method. Although the twin method was "in the air" in the mid-1920s, the first descriptions of the method appeared in an article by Curtis Merriman and in a book by Hermann Siemens, both in ...
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عنوان ژورنال:
- International journal of epidemiology
دوره 41 4 شماره
صفحات -
تاریخ انتشار 2012