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July 9, 2010HereditasOpen Access

The Chromosome Number of Man

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Authors

JTJ. H. TjioLund UniversityALALBERT LEVANLankenau Institute for Medical Research

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Implication

Cytogenetic analysis reveals the exact chromosome count in humans, highlighting a foundational milestone for modern clinical genetics.

Key Points

  • Document the historical cytogenetic breakthrough that accurately determined the diploid chromosome number in human cells.
  • Conducted specialized cytogenetic investigations led by researcher Dr. J.H. Tjio at the Estación Experimental de Aula Dei (EEAD).
  • Applied advanced cellular preparation and microscopy protocols to visualize and enumerate human mitotic chromosomes.
  • Demonstrated that the human karyotype comprises 46 chromosomes rather than the historically accepted count of 48.
  • Provided definitive visual confirmation of human chromosome morphology, establishing cytogenetics as a vital biomedical discipline.

Cite This Study

Tjio et al. (2010) studied this question.

synapsesocial.com/papers/6a72c28b22b3175134db7b18https://doi.org/10.1111/j.1601-5223.1956.tb03010.x
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