X-Nico

unusual facts about Mendelian



B chromosome

In general "we may regard supernumeraries as a very special category of genetic polymorphism which, because of manifold types of accumulation mechanisms, does not obey the ordinary Mendelian laws of inheritance." (White 1973 p173)

Hugo de Vries

Finally, in a published lecture of 1903 (Befruchtung und Bastardierung, Veit, Leipzig), De Vries was also the first to suggest the occurrence of recombinations between homologous chromosomes, now known as chromosomal crossovers, within a year after chromosomes were implicated in Mendelian inheritance by Walter Sutton.

Leonard Doncaster

Early Mendelian geneticist who discovered sex linkage, while writing up the results of the Reverend G.H. Raynor on the magpie moth Abraxas grossulariata.

Lindley Darden

For example, Darden examines the Mendelian "Theory of the Gene," which underwent significant theoretical modifications from around 1900 (when Mendel was "rediscovered") to 1926 (when Thomas Hunt Morgan published his famous textbook defining Mendelian theory in its roughly modern form).

Trichorrhexis invaginata

The Netherton syndrome Mendelian Inheritance in Man is inherited as an autosomal recessive disorder due to mutations of both copies of the SPINK5 gene (localized to band 5q31-32), which encodes the serine protease inhibitor LEKTI (lymphoepithelial Kazal-type-related inhibitor).

Uniparental inheritance

Carl Erich Correns and Erwin Baur, in separately conducted researches on Pelargonium and Mirabilis plants, observed a green-white variation (later found as the result of mutations in the chloroplast genome) that did not follow the Mendelian laws of inheritance.

Although his work was published, it lay dormant until it was rediscovered in 1900 by Hugo de Vries and Carl Correns but it was not until 1909 that non-mendelian inheritance was even suggested.

Year's Best SF 3

Paul Levinson: "The Mendelian Lamp Case" (First published in Analog, 1997)


see also