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Franklin William Stahl studied DNA replication, bacteriophages, and genetic recombination in the US during the mid-twentieth and early twenty-first…
DNA SequenceNucleotide sequenceDNA ReplicationDNA--SynthesisDNA replication--RegulationChāng (Chang) and Ēn (Eng) Bunker were conjoined twins in the nineteenth century in the United States, the first pair of conjoined twins whose…
Conjoined twinsSiamese TwinsTwinsIdentical twinsTwins, SiameseIn 1956, Gunther Stent, a scientist at the University of California Berkeley in Berkeley, California, coined the terms conservative, semi-…
DNADNA ReplicationDNA HelicasesGenesHeredityIn the 1990s, researchers working at the Roslin Institute in Edinburgh, Scotland, performed cloning experiments in collaboration with PPL…
CloningChristmas FactorBlood coagulation factor IXRoslin InstituteWilmut, IanStanley Paul Leibo studied the cryopreservation of embryos in the US in the twentieth century. Cryopreservation is a method of preserving biological…
Low temperature engineeringCryonicsScience and civilizationEmbryo transplantationCryotherapyIn February 1953, Linus Pauling and Robert Brainard Corey, two scientists working at the California Institute of Technology in Pasadena, California,…
LiteratureDNAGeneticsX-ray crystallography--TechniqueCrystallography, X-RayIn July 2015, Marni Sommer and colleagues published “Comfortably, Safely, and Without Shame: Defining Menstrual Hygiene Management as a Public Health…
LiteratureMenstruationMenstruation--Social aspectsFeminine Hygiene ProductsSanitary napkinsCarol Widney Greider studied telomeres and telomerase in the US at the turn of the twenty-first century. She worked primarily at the University of…
Greider, Carol W.Women Nobel Prize winnersNobel Prize winnersTelomeraseTelomerePublished in 2002, prostate cancer researcher John R. Masters authored a review article HeLa Cells 50 Years On: The Good, The Bad, and The Ugly that…
LiteratureCell linesContinuous cell linesGerm CellsSurface contaminationCraig C. Mello is an American developmental biologist and Nobel Laureate, who helped discover RNA interference (RNAi). Along with his colleague…
PeopleRNA InterferenceBiography