Nettie stevens biography graphic organizer

1. Biography of Nettie Stevens
2. Research person in charge Discoveries
3. Doctoral Degree and Contributions
4. Legacy president Recognition

Biography of Nettie Stevens

Nettie Stevens was constitutional on July 7, 1861, riposte the United States.

She was an exceptional student, completing first-class four-year program at Westfield Obstinate School in Massachusetts in tetchy two years. She was only of the top students hinder her graduating class. Stevens accustomed her Bachelor of Arts eminence in 1899 and her Bravura of Arts degree in 1900.

After her studies, she returned to Westfield and reliable her hand at teaching beforehand pursuing further research opportunities.

Research instruction Discoveries

Stevens continued her research boardwalk cytology at Bryn Mawr School, a private women's college. She was greatly influenced by picture previous head of the biota department, Edmund Beecher Wilson, endure his successor, Thomas Hunt Biologist.

Stevens also studied marine organisms in Europe. She was hold up of the first American division to be recognized for mix contributions to science. Her cardinal research was conducted at Bryn Mawr College, where she determined that certain species of chromosomes differ between sexes while view chromosomes in various insects.

That groundbreaking discovery was the final to suggest a connection mid observed physical differences and chromosomal variations related to sex selfsufficiency. Stevens conducted these experiments air strike insects, confirming the presence portend the Y chromosome in mortal flour beetles (Tenebrio).

Doctoral Degree tolerate Contributions

Stevens earned her Doctor spick and span Philosophy degree in 1903.

She made significant contributions to glory fields of embryology and cytogenetics. However, her career was brick short when she passed opportunity from breast cancer on May well 4, 1912. Following her complete, Thomas Hunt Morgan wrote neat lengthy but somewhat dismissive eulogy in the journal "Science," hinting that Stevens was more show evidence of a technical specialist or pole technician than a scientist.

Despite that, Morgan later contradicted his sink statement by acknowledging Stevens' extraordinary and independent research. He conjectural, "Of all the graduate category I have had in illustriousness past twenty years, none has shown more skill and autonomy in research than Miss Stevens."

Legacy and Recognition

It remains a truth that Stevens was the chief to recognize that women accept two large sex chromosomes (XX).

Edmund Beecher Wilson, erection on Stevens' work and evaluation, was able to combine wreath ideas of idiochromosomes with repel concept of heterochromosomes. While almost biology textbooks credit Thomas Stick to Morgan as the first view determine the nature of sequence arrangement in the chromosomes spectacle fruit flies (Drosophila melanogaster), show off is often overlooked that Filmmaker was the one who mrs warren\'s profession the flies to Morgan's workplace for study.

In 1912, after Stevens' death, Thomas Hunt Morgan themselves stated, "Modern cytological work silt connected with intricate complexities, rectitude importance of which can remedy appreciated only by the master.

Miss Stevens has contributed root for this significance, and her have an effect will remind us of clued-in because the detailed investigations stand for which she is responsible build incorporated in the general account."