The mating process is one of the most important mechanisms for maintaining genetic variation in natural populations. The emergence of sexual reproduction turned out to be the most important ...

Conjugation (or mating) of ciliates is a unique phenomenon among living beings. They have sex not for reproduction or pleasure — they seek to increase genetic variation. Scientists from St Petersburg ...

Goldstein, L. 1949. Contribution a l'étude de la sensibilité héréditaire au gaz carbonique chez la Drosophile. Mise en évidence d'une forme nouvelle du génoide. Bulletin Biologique de la France et de ...

On the origin of nuclear dualism in ciliates / I.B. Raikov -- The role of cytoplasmic inclusions in Protozoa / G.P. Dutta -- Chromatin distribution in a small Amoeba / R.S.J. Hawes -- Quantitative ...

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The cells adhere to each other, and the direct contact, a cytoplasmic bridge, occurs between the partners. Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted ...

Science, founded by Thomas A. Edison in 1880 and published by AAAS, today ranks as the world's largest circulation general science journal. Published 51 times a year, Science is renowned for its ...

THE larger ciliate protozoa provide a system which is particularly favourable for the investigation of the relationship between radiation sensitivity and events in vegetative growth and division.