Essay on Ernest Everett Just - Research on Parthenogenesis

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Title: Report on Ernest Everett Just Scientist: Ernest Everett Just - Male Date Of Birth: August 14, 1883 He was born in the discriminative conditions of the South and yet, Ernest Everett Just made his way up to become one of the most highly respected scientists of his time, graduating magna cum laude (with very great honour in Latin) from Dartmouth College in 1907, having earned a Ph.D. in zoology from the University of Chicago in 1916, and teaching at Howard University in Washington, D.C. from 1909 until his death in 1941. Just’s key contributions were served to enhance our understanding of the main parts of early biological development. He focused on fertilization, cell division, artificial parthenogenesis, the physiology of cell development, and the effects of dehydration and ultraviolet radiation on cell and chromosome structure. Ernest Just produced ground-breaking research in cell biology at the Woods Hole Oceanographic Institution in Massachusetts. It had been at the Woods Hole laboratories when he’d made and important discovery about cell cleavage, the successive cell divisions leading to the formation of the embryo. Using sea urchins, marine worms, and sand dollars, Ernest conducted experiments. Ernest proposed that the egg contained the necessary mechanism for development. As he continued with his experiments he confirmed the role of the egg cytoplasm in the initiation of cleavage. In his first paper, Just demonstrated that the sperm entrance point is critical in determining the line of cleavage of the egg. The importance of his discovery was generally recognized at the time, and years later the renowned geneticist and Nobel acclaimed T. H. Morgan would mention it as “the fundamental and authoritative study on the subject”. Just eventually became the number one authority on the embryological resources of marine animals. This clearly compares

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