Allan C. Wilson studied genes, proteins, and body structures of animals and humans in the US during the second half of the twentieth century. Wilson…
Hans Spemann was an experimental embryologist best known for his transplantation studies and as the originator of the "organizer" concept. One of his…
George Wells Beadle and Edward Lawrie Tatum's 1941 article Genetic Control of Biochemical Reactions in Neurospora detailed their experiments on how…
In humans, multi-fetal pregnancy occurs when a mother carries more than one fetus during the pregnancy. The most common multi-fetal pregnancy is…
Cold Spring Harbor Laboratory (CSHL) is a non-profit research institution that specializes in cancer, neuroscience, plant biology, quantitative…
A test-tube baby is the product of a successful human reproduction that results from methods beyond sexual intercourse between a man and a woman and…
James David Ebert studied the developmental processes of chicks and of viruses in the US during the twentieth century. He also helped build and grow…
Preformationism was a theory of embryological development used in the late seventeenth through the late eighteenth centuries. This theory held that…
"In vitro Experiments on the Effects of Mouse Sarcomas 180 and 37 on the Spinal and Sympathetic Ganglia of the Chick Embryo" were experiments…
Orchiopexy, also known as orchidopexy, is a surgical technique that can correct cryptorchidism and was successfully performed for one of the first…
