Title By Description Created Last modifiedsort ascending
Hedgehog Signaling Pathway Dorothy R. Haskett The hedgehog signaling pathway is a mechanism that directs the development of embryonic cells in animals, from invertebrates to vertebrates. The hedgehog signaling pathway is a system of genes and gene products, mostly proteins, that convert one kind of signal into another, called transduction. In 1980, Christiane Nusslein-Volhard and Eric F. Wieschaus, at the European Molecular Biology Laboratory in Heidelberg, Germany, identified several fruit fly (Drosophila melanogaster) genes. 2015-07-30 4 Jul 2018 - 4:40:59am
Thomas Hunt Morgan (1866-1945) Mary E. Sunderland Although best known for his work with the fruit fly, for which he earned a Nobel Prize and the title "The Father of Genetics," Thomas Hunt Morgan's contributions to biology reach far beyond genetics. His research explored questions in embryology, regeneration, evolution, and heredity, using a variety of approaches. 2007-09-25 4 Jul 2018 - 4:40:59am
"The Developmental Capacity of Nuclei Taken from Intestinal Epithelium Cells of Feeding Tadpoles" (1962), by John B. Gurdon Giselle Lee In 1962 researcher John Bertrand Gurdon at the University of Oxford in Oxford, England, conducted a series of experiments on the developmental capacity of nuclei taken from intestinal epithelium cells of feeding tadpoles. In the experiments, Gurdon conducted nuclear transplantation, or cloning, of differentiated cells, or cells that have already specialized to become one cell type or another, in tadpoles. Gurdon's experiment showed that differentiated adult cells could be induced to an undifferentiated state, where they could once again become multiple cell types. 2017-03-16 4 Jul 2018 - 4:40:59am
Hodgson v. Minnesota (1990) Rainey Horwitz In the 1990 case Hodgson v. Minnesota, the US Supreme Court in Washington, D.C., upheld Minnesota statute 144.343, which required physicians to notify both biological parents of minors seeking abortions forty-eight hours prior to each procedure. The US Supreme Court determined that a state could legally require physicians to notify both parents of minors prior to performing abortions as long as they allowed for a judicial bypass procedure, in which courts could grant exceptions. The Supreme Court’s decision in Hodgson v. 2017-10-24 4 Jul 2018 - 4:40:59am
Sir D'Arcy Wentworth Thompson (1860-1948) Mark A. Ulett Known by many for his wide-reaching interests and keen thinking, D'Arcy Wentworth Thompson was one of Britain's leading scientific academics in the first few decades of the twentieth century. A prodigious author, Thompson published some 300 papers, books, and articles in the biological sciences, classics, oceanography, and mathematics. He was a famous lecturer and conversationalist-a true "scholar-naturalist," as his daughter wrote in her biography of her father. 2010-06-29 4 Jul 2018 - 4:40:59am
Edward Drinker Cope's Law of Acceleration of Growth M. Elizabeth Barnes The Law of Acceleration of Growth is a theory proposed by Edward Drinker Cope in the US during the nineteenth century. Cope developed it in an attempt to explain the evolution of genera by appealing to changes in the developmental timelines of organisms. Cope proposed this law as an additional theory to natural selection. 2014-07-24 4 Jul 2018 - 4:40:59am
John Bertrand Gurdon (1933- ) Inbar Maayan, Sean Cohmer Sir John Bertrand Gurdon further developed nuclear transplantation, the technique used to clone organisms and to create stem cells, while working in Britain in the second half of the twentieth century. Gurdon's research built on the work of Thomas King and Robert Briggs in the United States, who in 1952 published findings that indicated that scientists could take a nucleus from an early embryonic cell and successfully transfer it into an unfertilized and enucleated egg cell. 2012-10-11 4 Jul 2018 - 4:40:59am
The Time Has Come: A Catholic Doctor's Proposals to End the Battle over Birth Control (1963), by John Rock Christina Raup In 1963, Roman Catholic fertility doctor John Rock published The Time Has Come: A Catholic Doctor's Proposals to End the Battle over Birth Control, a first-person treatise on the use of scientifically approved forms of birth control for Catholic couples. The first contraceptive pill, called Enovid, had been on the market since June 1960, and Rock was one of the leading researchers in its development. In The Time Has Come, Rock explicitly describes the arguments for and against the use of birth control from both a religious and a scientific perspective. 2010-06-10 4 Jul 2018 - 4:40:59am
Warren Tay (1843–1927) Tiffany Nardi The arterial switch operation, also called the Jatene procedure, is an operation in which surgeons redirect the flow of blood through abnormal hearts. In 1975, Adib Jatene conducted the first successful arterial switch operation on a human infant. The arterial switch operation corrects a condition called transposition of the great arteries, abbreviated TGA, also called transposition of the great vessels, abbreviated TGV. TGA occurs when the pulmonary artery, which supplies deoxygenated blood to the lungs, and the aorta, which takes oxygenated blood to the body, are switched, or transposed. 2017-05-27 4 Jul 2018 - 4:40:59am
John Spangler Nicholas (1895-1963) Ellen M. Dupont John Spangler Nicholas, an American biologist, was born on 10 March 1895 in Allegheny, Pennsylvania. He was the only child of Elizabeth Ellen Spangler, a teacher, and Samuel Trauger Nicholas, a Lutheran minister. Nicholas held myriad administrative positions throughout his life and his contributions to biology spanned several sub-disciplines, but his most notable accomplishments were in the field of embryology. 2008-07-23 4 Jul 2018 - 4:40:59am
"Genetic Control of Biochemical Reactions in Neurospora" (1941), by George W. Beadle and Edward L. Tatum Divyash Chhetri George Wells Beadle and Edward Lawrie Tatum's 1941 article Genetic Control of Biochemical Reactions in Neurospora detailed their experiments on how genes regulated chemical reactions, and how the chemical reactions in turn affected development in the organism. Beadle and Tatum experimented on Neurospora, a type of bread mold, and they concluded that mutations to genes affected the enzymes of organisms, a result that biologists later generalized to proteins, not just enzymes. 2014-06-11 4 Jul 2018 - 4:40:59am
Gonzales v. Carhart (2007) Mark Zhang In Gonzales v. Carhart (2007), the US Supreme Court held in a five-to-four decision that the 2003 Partial-Birth Abortion Ban Act passed by the US Congress was constitutional. Although the Court previously ruled in Stenberg v. Carhart (2000) that a Nebraska law that prohibited partial-birth abortions was unconstitutional, Gonzales reversed this decision. Gonzales created the precedent that anyone who delivers and kills a living fetus could be subject to legal consequences, unless he or she performed the procedure to save the life of the mother. 2012-02-28 4 Jul 2018 - 4:40:59am
Hysterectomy Kristin Kelley A hysterectomy is the surgical removal of a woman's uterus. For many women, a hysterectomy comes as a solution to health problems as diverse as abnormal bleeding to reproductive cancers. First performed in the early 1800s, this procedure has evolved in terms of both technique and popularity. The first successful abdominal hysterectomy was performed by Ellis Burnham in Lowell, Massachusetts, in 1853, although earlier attempts were made in the 1840s. 2010-09-02 4 Jul 2018 - 4:40:59am
Ian Donald (1910–1987) Nicole Erjavic Ian Donald was an obstetrician who developed the technology and therapy of ultrasound diagnostics during the twentieth century in Europe. Ultrasound is a medical diagnostic technique that uses sound waves to produce images of the inside of the body. During the early 1900s, physicians had no way to see inside a woman’s uterus during pregnancy. Donald developed the first method of scanning human internal anatomy in real time, which enabled doctors to diagnose potentially fatal tumors and cysts. 2018-01-30 4 Jul 2018 - 4:40:59am
Gavin Rylands de Beer (1899-1972) Megan Kearl Gavin de Beer was an English zoologist known for his contributions to evolution and embryology, in particular for showing the inadequacy of the germ layer theory as it was then proposed. He was born in London, England, on 1 November 1899, but was raised for his first thirteen years in France where his father worked for a telegraph company. He entered Magdalen College, Oxford, in 1917 but his studies were soon interrupted by World War I. After serving in the military, he returned to Oxford where he studied under Edwin Goodrich. 2010-06-02 4 Jul 2018 - 4:40:59am
James David Ebert (1921-2001) Sheraden Seward 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 many research institutions, such as the Department of Embryology in the Carnegie Institution of Washington in Baltimore, Maryland and the Marine Biological Laboratory (MBL) in Woods Hole, Massachusetts. When few biologists studied the biochemistry of embryos, Ebert built programs and courses around the foci of biochemistry and genetics, especially with regards to embryology. 2008-09-12 4 Jul 2018 - 4:40:59am
The Mothers' Clinic Ellen M. DuPont The Mothers' Clinic for Constructive Birth Control was established on 17 March 1921. The first family planning clinic ever established in Great Britain, it was co-founded by Marie Charlotte Carmichael Stopes and her husband Humphrey Verdon Roe at Number 61, Marlborough Road in Holloway, North London. The Mothers' Clinic was one of the highlights of Stopes's extensive career as a proponent of available birth control and women's sexual equality. 2008-07-22 4 Jul 2018 - 4:40:59am
"Testing the Kin Selection Theory: Who Controls the Investments?" from The Ants (1990), by Bert Hölldobler and Edward O. Wilson Kelle Dhein In “Testing the Kin Selection Theory: Who Controls the Investments?” Bert Hölldobler and Edward Osborne Wilson discussed the predictive power of kin selection theory, a theory about the evolution of social behaviors. As part of Hölldobler's and Wilson's 1990 book titled The Ants, Hölldobler and Wilson compared predictions about the reproductive practices of ants to data about the reproductive practices of ants. They showed that the data generally supported the expected behaviors proposed by kin selection theory. 2017-04-18 4 Jul 2018 - 4:40:59am
Robert William Briggs (1911-1983) Adam R. Navis Robert William Briggs was a prolific developmental biologist. However, he is most identified with the first successful cloning of a frog by nuclear transplantation. His later studies focused on the problem of how genes influence development. 2007-11-08 4 Jul 2018 - 4:40:59am
Lysogenic Bacteria as an Experimental Model at the Pasteur Institute (1915-1965) Valerie Racine Lysogenic bacteria, or virus-infected bacteria, were the primary experimental models used by scientists working in the laboratories of the Pasteur Institute in Paris, France, during the 1950s and 1960s. Historians of science have noted that the use of lysogenic bacteria as a model in microbiological research influenced the scientific achievements of the Pasteur Institute's scientists. 2014-10-10 4 Jul 2018 - 4:40:59am
Solomon A. Berson (1918-1972) Jennifer R. Craer Solomon A. Berson helped develop the radioimmunoassay (RIA) technique in the US during the twentieth century. Berson made many scientific contributions while working with research partner Rosalyn Yalow at the Bronx Veterans Administration (VA) hospital, in New York City, New York. In the more than twenty years that Berson and Yalow collaborated, they refined the procedures for tracing diagnostic biological compounds using isotope labels. 2013-11-01 4 Jul 2018 - 4:40:59am
Mizuko Kuyo Katherine Brind'Amour, Benjamin Garcia Mizuko Kuyo is a Japanese Buddhist ceremony that focuses on a deceased fetus or stillborn child. This ceremony was originally developed to honor Jizo, a god believed to be responsible for transporting dead fetuses or children to the other world. The practice has become more popular in the last half century due to the growing number of abortions taking place and the particular views that Japanese Buddhists have about fetuses and abortion. 2007-10-30 4 Jul 2018 - 4:40:59am
Clifford Grobstein (1916-1998) Brad Jacobson Clifford Grobstein was a traditional, influential, and highly innovative biologist of the mid-twentieth century, gifted with many character facets and pragmatic talents. His early adulthood passion of linking classical embryology with developmental anatomy and medicine was joined by his later pursuit of combining research ethics and science education with public policy. 2010-11-19 4 Jul 2018 - 4:40:59am
"Evolution and Tinkering" (1977), by Francois Jacob Valerie Racine In his essay Evolution and Tinkering, published in Science in 1977, Francois Jacob argued that a common analogy between the process of evolution by natural selection and the methods of engineering is problematic. Instead, he proposed to describe the process of evolution with the concept of bricolage (tinkering). In this essay, Jacob did not deny the importance of the mechanism of natural selection in shaping complex adaptations. Instead, he maintained that the cumulative effects of 2014-10-24 4 Jul 2018 - 4:40:59am
Wilhelm Johannsen's Genotype-Phenotype Distinction B. R. Erick Peirson Wilhelm Johannsen in Denmark first proposed the distinction between genotype and phenotype in the study of heredity in 1909. This distinction is between the hereditary dispositions of organisms (their genotypes) and the ways in which those dispositions manifest themselves in the physical characteristics of those organisms (their phenotypes). This distinction was an outgrowth of Johannsen's experiments concerning heritable variation in plants, and it influenced his pure line theory of heredity. 2012-12-07 4 Jul 2018 - 4:40:59am
Light Therapy for Neonatal Jaundice Arianna Bradley Light therapy, also called phototherapy, exposes infants with jaundice, a yellowing of the skin and eyes, to artificial or natural light to break down the buildup of bilirubin pigment in the blood. Bilirubin is an orange to red pigment produced when red blood cells break down, which causes infants to turn into a yellowish color. Small amounts of bilirubin in the blood are normal, but when there is an accumulation of excess bilirubin pigment, the body deposits the excess bilirubin in the layer of fat beneath the skin. 2017-08-17 4 Jul 2018 - 4:40:59am
Sergio Cereceda Stone (1942- ) Hilary Gilson Sergio Cereceda Stone was born 16 April 1942 in the coastal city of Valparaiso, Chile. Stone's mother Luz was a housewife and caretaker for Sergio and his younger brother Lionel; his father Sergio served among the country's twenty appellate court judges. In the early 1950s Stone's father relocated the family to Santiago to further his law career. 2010-06-07 4 Jul 2018 - 4:40:59am
Christopher Polge and Lionel Edward Aston Rowson’s Experiments on the Freezing of Bull Spermatozoa (1950–1952) Renee Bailey In 1952, researchers Christopher Polge and Lionel Edward Aston Rowson, who worked at the Animal Research Center in Cambridge, England, detailed several experiments on protocols for freezing bull semen for use in the artificial insemination of cows. Freezing sperm extends the life of a viable sperm sample and allows it to be used at later times, such as in artificial insemination. The researchers examined the effects of freezing conditions on bull sperm and how well they produce fertilized embryos once thawed. 2017-12-19 4 Jul 2018 - 4:40:59am
Circulatory Changes at Birth Brad Jacobson When placental mammals are born their circulatory systems undergo radical changes as the newborns are prepared for independent life. The lungs are engaged, becoming the primary source of fresh oxygen, replacing the placental barrier as a means for blood-gas exchange. 2010-09-12 4 Jul 2018 - 4:40:59am
The Source-Sink Model Jack Resnik The source-sink model, first proposed by biologist Francis Crick in 1970, is a theoretical system for how morphogens distribute themselves across small fields of early embryonic cells. A morphogen is a substance that determines the fate and phenotype of a group of cells through a concentration gradient of itself across that group. Crick’s theory has been experimentally confirmed with several morphogens, most notably with the protein bicoid , the first discovered morphogen. The model provides a theoretical structure for the understanding of some features of early embryonic development. 2012-05-07 4 Jul 2018 - 4:40:59am
Edwin Stephen Goodrich (1868-1946) Joe Brinkman Edwin Stephen Goodrich studied the structures of animals in England during the nineteenth and twentieth centuries. Goodrich studied how animals develop to identify their parts and to establish the evolutionary relationships between different species. Goodrich established that body structures can shift their positions relative to an organism's body during evolution, and he hypothesized that body structures can share ancestry (homology) between organisms of different species, even without identical body placement. 2014-12-30 4 Jul 2018 - 4:40:59am
Effects of Prenatal Alcohol Exposure on Cardiac Development Erica O'Neil A variety of developmental defects occur as a result of prenatal exposure to alcohol (ethanol) in utero. In humans, those defects are collectively classified as Fetal Alcohol Spectrum Disorders, with Fetal Alcohol Syndrome (FAS) representing the more severe defects. FAS is defined by pre- and post-natal growth retardation, minor facial abnormalities, and deficiencies in the central nervous system (CNS). In addition to those defects, prenatal exposure to alcohol impacts cardiogenesis, the developmental stage of heart formation. 2011-04-30 4 Jul 2018 - 4:40:59am
In re Agent Orange Product Liability Litigation (1979-1984) Alexis Abboud In the legal case In re Agent Orange Product Liability Litigation of the early 1980s, US military veterans of the Vietnam War sued the US chemical companies that had produced the herbicide Agent Orange, and those companies settled with US veterans out of court. Agent Orange contains dioxin, a chemical later shown to disrupt the hormone system of the body and to cause cancer. As veterans returned to the US from Vietnam, scientists further confirmed that exposure to Agent Orange caused a variety of cancers in veterans and developmental problems in the veterans' children. 2017-04-10 4 Jul 2018 - 4:40:59am
The Game of Life, by John Horton Conway Julia Damerow The Game of Life, or just Life, is a one-person game that was created by the English mathematician John Horton Conway in the late 1960s. It is a simple representation of birth, death, development, and evolution in a population of living organisms, such as bacteria. Martin Gardner popularized the Game of Life by writing two articles for his column "Mathematical Games" in the journal Scientific American in 1970 and 1971. There exist several websites that provide the Game of Life as a download or as an online game. 2010-06-24 4 Jul 2018 - 4:40:59am
Green Fluorescent Protein Yawen Zou Green fluorescent protein (GFP) is a protein in the jellyfish Aequorea Victoria that exhibits green fluorescence when exposed to light. The protein has 238 amino acids, three of them (Numbers 65 to 67) form a structure that emits visible green fluorescent light. In the jellyfish, GFP interacts with another protein, called aequorin, which emits blue light when added with calcium. Biologists use GFP to study cells in embryos and fetuses during developmental processes. 2014-06-11 4 Jul 2018 - 4:40:59am
Corticosteroids' Effect on Fetal Lung Maturation (1972), by Sir Graham Collingwood Liggins and Ross Howie Kathleen O'Connor, Erica O'Neil In a clinical trial from 1969 to 1972, Sir Graham Collingwood Liggins and Ross Howie showed that if doctors treat pregnant women with corticosteroids before those women deliver prematurely, then those women's infants have fewer cases of respiratory distress syndrome than do similarly premature infants of women not treated with corticosteroids. Prior to the study, premature infants born before 32 weeks of gestation often died of respiratory distress syndrome, or the inability to inflate immature lungs. 2012-12-19 4 Jul 2018 - 4:40:59am
Intracytoplasmic Sperm Injection Tian Zhu Intracytoplasmic Sperm Injection (ICSI) is an assisted reproductive technique (ART) initially developed by Dr. Gianpiero D. Palermo in 1993 to treat male infertility. It is most commonly used in conjunction with in vitro fertilization (IVF) or a less commonly used technique called zygote intrafallopian transfer (ZIFT). In natural fertilization, the sperm must penetrate the surface of the female egg, or oocyte. 2009-06-10 4 Jul 2018 - 4:40:59am
Stem Cells Ke Wu According to the US National Institutes of Health (NIH), the standard American source on stem cell research, three characteristics of stem cells differentiate them from other cell types: (1) they are unspecialized cells that (2) divide for long periods, renewing themselves and (3) can give rise to specialized cells, such as muscle and skin cells, under particular physiological and experimental conditions. When allowed to grow in particular environments, stem cells divide many times. This ability to proliferate can yield millions of stem cells over several months. 2010-10-29 4 Jul 2018 - 4:40:59am
"Contributions to the Development of the Embryo. On the Artificial Production of One of the First Two Blastomeres, and the Later Development (Postgeneration) of the Missing Half of the Body" (1888), by Wilhelm Roux Megan Kearl Wilhelm Roux was an influential figure in the early history of experimental embryology. Although he originally studied medicine, he was invited to be a Privatdozentur, or unsalaried lecturer, at the Anatomical Institute in Breslau (Wroclaw), Poland, in 1879. He spent the next ten years at this institute, working his way from Dozent to associate professor and finally, in 1889, to director for his own institute, Institut für Entwicklungsgeschichte, or Institute for Developmental History and Mechanics. 2009-07-20 4 Jul 2018 - 4:40:59am
The Y-Chromosome in Animals Dorothy R. Haskett The Y-chromosome is one of a pair of chromosomes that determine the genetic sex of individuals in mammals, some insects, and some plants. In the nineteenth and twentieth centuries, the development of new microscopic and molecular techniques, including DNA sequencing, enabled scientists to confirm the hypothesis that chromosomes determine the sex of developing organisms. In an adult organism, the genes on the Y-chromosome help produce the male gamete, the sperm cell. Beginning in the 1980s, many studies of human populations used the Y-chromosome gene sequences to trace paternal lineages. 2015-05-28 4 Jul 2018 - 4:40:59am
Amniocentesis Prior to 1980 Kristin Kelley The extraembryonic membranes that surround and originate from the embryos of vertebrates such as birds, reptiles, and mammals are crucial to their development. They are integral to increasing the surface area of the uterus, forming the chorion (which in turn produces the placenta) and the amnion, respectively. The amnion will ultimately surround the embryo in a fluid-filled amniotic cavity. This amniotic fluid, which cushions and protects the fetus and helps prevent the onset of labor, is sampled in amniocentesis to screen for genetic diseases. 2010-09-02 4 Jul 2018 - 4:40:59am
A Treatise on the Theory and Practice of Midwifery (1752-1764), by William Smellie Yvette Tran A Treatise on the Theory and Practice of Midwifery is a three volume collection of patient accounts that William Smellie published from 1752 to 1764. Smellie, a physician and instructor in obstetrics in Great Britain, published these compilations to share his expertise in reproductive medicine, while also providing his students and colleagues with a source of reference in their own medical practices. Smellie wrote these books to shift obstetrics from a discipline practiced by midwives with limited medical training to one practiced in a medical context by physicians. 2017-05-04 4 Jul 2018 - 4:40:59am
"The Multi-Dimensional Human Embryo" Sarah Ly The Multi-Dimensional Human Embryo website ( is a publicly accessible online database of the first three-dimensional images and animations of human embryos during different stages of development. Both the images and animations were created using magnetic resonance microscopy and compiled for easy access. 2011-03-24 4 Jul 2018 - 4:40:59am
Studies of Thalidomide's Effects on Rodent Embryos from 1962-2008 Chanapa Tantibanchachai, Joanna Yang Thalidomide is a sedative drug introduced to European markets on 1 October 1957 after extensive testing on rodent embryos to ensure its safety. Early laboratory tests in rodent populations showed that pregnant rodents could safely use it, so doctors prescribed Thalidomide to treat morning sickness in pregnant women. However, in humans Thalidomide interfered with embryonic and fetal development in ways not observed in rodent tests. 2014-03-07 4 Jul 2018 - 4:40:59am
The Meckel-Serres Conception of Recapitulation Lindsey O'Connell Johann Friedrich Meckel and Antoine Etienne Reynaud Augustin Serres developed in the early 1800s the basic principles of what later became called the Meckel-Serres Law. Meckel and Serres both argued that fetal deformities result when development prematurely stops, and they argued that these arrests characterized lower life forms, through which higher order organisms progress during normal development. The concept that the embryos of higher order organisms progress through successive stages in which they resemble lower level forms is called recapitulation. 2013-07-10 4 Jul 2018 - 4:40:59am
Preimplantation Genetic Diagnosis Nathalie Antonios Preimplantation genetic diagnosis (PGD) involves testing for specific genetic conditions prior to the implantation of an embryo in the uterine wall. This form of genetic screening has been made possible by the growth of in-vitro fertilization (IVF) technology, which allows for the early stages of development to occur in a laboratory dish rather than in vivo. The purpose of PGD is to identify what are considered to be abnormal embryos in order to select the most desirable embryos for implantation. 2011-03-24 4 Jul 2018 - 4:40:59am
Harvey Leroy Karman (1924–2008) Rainey Horwitz Harvey Karman was an abortionist, inventor, and activist for safe abortion techniques in the US during the twentieth century. Karman developed the Karman cannula, a flexible soft tube used for vacuum aspiration abortions. Karman traveled extensively throughout the US to educate healthcare providers on how to administer safe abortions. He also traveled to Bangladesh, India, China, and other developing nations to promote safe and simple abortion techniques that anyone could perform without previous medical training. 2017-07-18 4 Jul 2018 - 4:40:59am
Keith Henry Stockman Campbell (1954-2012) Zane Bartlett Keith Henry Stockman Campbell studied embryo growth and cell differentiation during the twentieth and twenty-first centuries in the UK. In 1995, Campbell and his scientific team used cells grown and differentiated in a laboratory to clone sheep for the first time. They named these two sheep Megan and Morag. Campbell and his team also cloned a sheep from adult cells in 1996, which they named Dolly. Dolly was the first mammal cloned from specialized adult (somatic) cells with the technique of somatic cell nuclear transfer (SCNT). 2014-06-27 4 Jul 2018 - 4:40:59am
Wilhelm Roux (1850-1924) Megan Kearl Wilhelm Roux was a nineteenth-century experimental embryologist who was best known for pioneering Entwicklungsmechanik, or developmental mechanics. Roux was born in Jena, Germany, on 9 June 1850, the only son of Clotilde Baumbach and a university fencing master, F. A. Wilhelm Ludwig Roux. Roux described himself as an aloof child, but when he was fourteen he cultivated a passion for science that was encouraged by the director at Oberrealschule in Meiningen. 2009-07-22 4 Jul 2018 - 4:40:59am
Doolan v. IVF America [Brief] (2000) Brock Heathcotte The implication of the court's decision was that Thomas Doolan's identity or personhood existed at the embryo stage in vitro, thus the fact that he was born with cystic fibrosis was not attributable to the decision of the in vitro fertilization providers to implant one embryo instead of another. The other unused embryo may not have carried the cystic fibrosis genes, but that other embryo was not Thomas Doolan. The decision in Doolan has not been publicly tested in other jurisdictions. 2008-05-09 4 Jul 2018 - 4:40:59am