Article ID: CBB238032821

“Treasure your exceptions!” (William Bateson, 1908): leggi e variazioni nella genetica mendeliana (2017)

unapi

The methods and theoretical principles of genetics constitute a theoretical paradox. It is perhaps the only biological discipline in which we can speak of ‘laws’ or rules of universal validity (Mendel’s laws, the central dogma of molecular biology, the genetic code), but at the same time all its explanatory framework is based on the identification of mutations, the ‘exceptions’ to the rigid regularity of hereditary transmission. A character that is transmitted unchanged remains silent. Only when it changes, producing inheritable variations, it becomes visible for the observer and allows us to trace the hereditary factors that determine it. The exceptions are therefore the tool for the understanding of the rules of inheritance. Mutations are also the source of the variability within the populations which is the basis of evolution by natural selection. Life is therefore the result of the fruitful synthesis between rules and exceptions, between chance and necessity.

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Authors & Contributors
Sheldon, Myrna Perez
Richmond, Marsha L.
Radick, Gregory
Bertoldi, Nicola
Yafeng Shan
Tau, Ramiro
Journals
Studies in History and Philosophy of Science
Endeavour: Review of the Progress of Science
Mefisto: Rivista di medicina, filosofia, storia
Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences
Science and Education
Physis: Rivista Internazionale di Storia della Scienza
Publishers
Trafford Publishing
Duke University Press
Cold Spring Harbor Laboratory Press
Centre for Sciences and Humanities of the Institute of Contemporary History of the Academy of Sciences of the Czech Republic
Concepts
Genetics
Mendelism; Mendelian inheritance
Biology
Heredity
Darwinism
Science and culture
People
Bateson, William
Pearson, Karl
Mendel, Gregor Johann
Galton, Francis
Weldon, Walter Frank Raphael
Darwin, Charles Robert
Time Periods
20th century
19th century
20th century, early
18th century
20th century, late
17th century
Places
Great Britain
Switzerland
Germany
Institutions
Cambridge University
Royal Society of London
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