What was Ernest Everett Just job?
What was Ernest Everett Just job?
Teacher
Biologistuniversity teacher
Ernest Everett Just/Professions
Where is Ernest Everett Just?
Ernest Everett Just (August 14, 1883 – October 27, 1941) was a pioneering African-American biologist, academic and science writer….
| Ernest Everett Just | |
|---|---|
| Born | 14 August 1883 Charleston, South Carolina |
| Died | 27 October 1941 (aged 58) Washington D.C. |
| Nationality | American |
| Alma mater | Dartmouth College University of Chicago |
How old was Ernest Everett Just when he died?
58 years (1883–1941)
Ernest Everett Just/Age at death
Just had been ill for months before his incarceration as a POW, but his condition deteriorated during his imprisonment and after his return to the United States. He died on October 27, 1941, in Washington, D.C., shortly after being diagnosed with pancreatic cancer. He was 58 years old.
What is the wave of negativity?
Fast and slow blocks to polyspermy As early as 1919, he observed the “wave of negativity” that sweeps over the egg cell at the onset of fertilization envelope separation, preventing fertilization by more than one spermatozoon (polyspermy).
Who did Ernest Everett Just marry?
Hedwig Schnetzlerm. 1939–1941
Ethel Highwardenm. 1912–1939
Ernest Everett Just/Spouse
Who was Ernest Everett Just wife?
Ernest Everett Just/Wife
What is Ernest Everett Just famous for?
Ernest Everett Just was an African American biologist and educator who pioneered many areas on the physiology of development, including fertilization, experimental parthenogenesis, hydration, cell division, dehydration in living cells and ultraviolet carcinogenic radiation effects on cells.
Why is the wave of negativity important?
He discovered that a “wave of negativity” sweeps over the egg during fertilization; it is a wave of ectoplasmic structural change that blocks additional sperm from binding to the egg surface, and it is associated with what is known as the fast block to polyspermy.
Who was the first black marine biologist?
Ernest Everett Just
The marine sciences would not be what they are today without the significant contributions of four integral Black scientists – Ernest Everett Just, Roger Arliner Young, Evan B. Forde, and Ashanti Johnson. E.E. Just at Dartmouth College Ernest Everett Just is widely regarded as the first Black marine biologist.
What is Ernest Everett best known for?
Marine biology
Cell biologyParthenogenesis
Ernest Everett Just/Known for
How did Ernest Everett Just impact society?
Just, an early 20th-century African American biologist of international standing who is best known for his elucidation of the fast and slow blocks to polyspermy, made important contributions to a number of areas of biology: the breeding behavior of marine invertebrates, the fertilization reaction in sea urchin and …
Who was Ernest Everett Just and what did he do?
Ernest Everett Just. Jump to navigation Jump to search. Ernest Everett Just (August 14, 1883 – October 27, 1941) was a pioneering African-American biologist, academic and science writer.
Where can I find Ernest Everett Just MS home page?
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Why did Ernest Everett Just move to James Island?
Due to mounting debt, his mother, Mary Just, and her children moved from Charleston to James Island, a Gullah community off the coast of South Carolina, to work in its phosphate mines. Mary Just became a highly respected leader of the community and convinced a number of residents on the island to purchase land and start their own community.
What did Ernest Everett Just do in the embryo project?
In The Biology of the Cell Surface, Just also continued his attack on the role of genes in development. He remained adamant that cytoplasm was the key to development and not the nucleus. This countered the growing enthusiasm by geneticists who held the idea that the nucleus controlled fertilization and development.