Chromosome Theory of Inheritance history timeline

Chromosome Theory of Inheritance history timeline

• Mendel’s Laws of Inheritance, 1865, CE
  Gregor Mendel publishes “Experiments on Plant Hybridization,” establishing the foundational principles of inheritance

• Rediscovery of Mendel’s Work, 1900, CE
  Hugo de Vries, Carl Correns, and Erich von Tschermak independently rediscover Mendel’s principles, reviving interest in genetics

• Chromosome Theory Proposed, 1902, CE
  Walter Sutton observes that chromosomes segregate during meiosis consistent with Mendel’s laws, proposing the chromosomal basis of inheritance

• Independent Confirmation by Boveri, 1902, CE
  Theodor Boveri shows all chromosomes are necessary for proper embryonic development in sea urchins, supporting the chromosome theory

• Sutton’s Key Publication, 1903, CE
  Walter Sutton publishes “The Chromosomes in Heredity,” explaining how chromosome behavior during meiosis aligns with Mendelian inheritance

• Integration with Mendelian Genetics, 1903, CE
  Boveri and Sutton independently propose genes are located on chromosomes, linking Mendel’s laws with chromosome behavior

• Linkage Mapping Developed, 1911, CE
  Alfred Sturtevant creates the first genetic linkage map in fruit flies, showing the linear order of genes on chromosomes

• Sex Chromosome Discovery, 1905, CE
  Nettie Stevens identifies X and Y chromosomes as sex determinants in some organisms

• Chromosome Number in Humans Determined, 1956, CE
  Joe Hin Tjio determines humans have 46 chromosomes, correcting earlier estimates

• Human Genome Project Completed, 2003, CE
  The Human Genome Project maps the entire human genome, confirming chromosomes as carriers of genetic information