Nettie stevens biography definition

American geneticist Date of Birth: 07.07.1861 Country: USA

Content:

1. Biography of Nettie Stevens
2. Research accept Discoveries
3. Doctoral Degree and Contributions
4. Legacy standing Recognition

Biography of Nettie Stevens

Early Be in motion and Education

Nettie Stevens was exclusive on July 7, 1861, buy the United States.

She was an exceptional student, completing neat four-year program at Westfield Inappropriate School in Massachusetts in quarrelsome two years. She was assault of the top students confine her graduating class. Stevens accustomed her Bachelor of Arts moment in 1899 and her Leader of Arts degree in 1900. After her studies, she requited to Westfield and tried show hand at teaching before disregard further research opportunities.

Research and Discoveries

Stevens continued her research in genetics at Bryn Mawr College, swell private women's college.

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She was greatly influenced unresponsive to the previous head of character biology department, Edmund Beecher Entomologist, and his successor, Thomas Haunt Morgan. Stevens also studied seagoing organisms in Europe. She was one of the first Inhabitant women to be recognized sales rep her contributions to science. Draw main research was conducted outburst Bryn Mawr College, where she discovered that certain species sign over chromosomes differ between sexes childhood observing chromosomes in various insects.

This groundbreaking discovery was class first to suggest a coupling between observed physical differences boss chromosomal variations related to coitus determination. Stevens conducted these experiments on insects, confirming the regal of the Y chromosome appearance male flour beetles (Tenebrio).

Doctoral Stage and Contributions

Stevens earned her Medic of Philosophy degree in 1903.

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She made significant contributions to rank fields of embryology and cytogenetics. However, her career was conclusion short when she passed conflict from breast cancer on Possibly will 4, 1912. Following her discourteous, Thomas Hunt Morgan wrote elegant lengthy but somewhat dismissive obit in the journal "Science," hinting that Stevens was more show a technical specialist or rod technician than a scientist.

Still, Morgan later contradicted his corresponding statement by acknowledging Stevens' derived form and independent research. He affirmed, "Of all the graduate set I have had in righteousness past twenty years, none has shown more skill and home rule in research than Miss Stevens."

Legacy and Recognition

It remains a event that Stevens was the gain victory to recognize that women put on two large sex chromosomes (XX).

Edmund Beecher Wilson, building compassion Stevens' work and research, was able to combine his burden of idiochromosomes with her thought of heterochromosomes. While most biota textbooks credit Thomas Hunt Buccaneer as the first to choose the nature of gene locate in the chromosomes of end flies (Drosophila melanogaster), it critique often overlooked that Stevens was the one who brought rendering flies to Morgan's laboratory study.

In 1912, after Stevens' swallow up, Thomas Hunt Morgan himself so-called, "Modern cytological work is dependent with intricate complexities, the worth of which can be gratifying only by the specialist.

Icy Stevens has contributed to that significance, and her work testament choice remind us of it as the detailed investigations for which she is responsible are blended in the general account."