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Home > Dictionary of Science Quotations > Scientist Names Index B > Theodor Boveri Quotes

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Theodor Boveri
(12 Oct 1862 - 15 Oct 1915)

German cytologist.

Science Quotes by Theodor Boveri (2 quotes)

At fertilization, these two 'haploid' nuclei are added together to make a 'diploid' nucleus that now contains 2a, 2b and so on; and, by the splitting of each chromosome and the regulated karyokinetic separation of the daughter chromosomes, this double series is inherited by both of the primary blastomeres. In the resulting resting nuclei the individual chromosomes are apparently destroyed. But we have the strongest of indications that, in the stroma of the resting nucleus, every one of the chromosomes that enters the nucleus survives as a well-defined region; and as the cell prepares for its next division this region again gives rise to the same chromosome (Theory of the Individuality of the Chromosomes). In this way the two sets of chromosomes brought together at fertilization are inherited by all the cells of the new individual. It is only in the germinal cells that the so called reduction division converts the double series into a single one. Out of the diploid state, the haploid is once again generated.
— Theodor Boveri
Arch. Zellforsch, 1909, 3, 181, trans. Henry Harris, The Birth of the Cell (1999), 171-2.
Science quotes on:  |  Cell (137)  |  Chromosome (19)  |  Fertilization (15)

For it is not cell nuclei, not even individual chromosomes, but certain parts of certain chromosomes from certain cells that must be isolated and collected in enormous quantities for analysis; that would be the precondition for placing the chemist in such a position as would allow him to analyse [the hereditary material] more minutely than [can] the morphologists ... For the morphology of the nucleus has reference at the very least to the gearing of the clock, but at best the chemistry of the nucleus refers only to the metal from which the gears are formed.
— Theodor Boveri
Ergebnisse über die Konstitution der chromatischen Substam des Zellkems (1904), 123. Translated in Robert Olby, The Path to the Double Helix: The Discovery of DNA (1994), xx.
Science quotes on:  |  Biochemistry (46)  |  Chromosome (19)  |  Heredity (53)

Quotes by others about Theodor Boveri (1)

I must beg leave to propose a separate technical name ‘chromosome’ for those things which have been called by Boveri ‘chromatic elements’, in which there occurs one of the most important acts in karyokinesis, viz. the longitudinal splitting.
[Coining the word ‘chromosome,’ or ‘chromosom’ in the original German.]
Original German text by Waldeyer in Archiv fόr Mikroskopische Anatomie (1888), 27, translated by W.B. Benham in Quarterly Journal of Microscopical Science (1889), 30, 181.
Science quotes on:  |  Beg (5)  |  Chromosome (19)  |  Nomenclature (138)  |  Proposal (11)  |  Splitting (3)

See also:
  • 12 Oct - short biography, births, deaths and events on date of Boveri's birth.

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