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Spermism

By: Cera R. Lawrence | Published: Aug 13, 2008

Spermism was one of two models of preformationism, a theory of embryo generation prevalent in the late seventeenth through the end of the eighteenth…

SpermatozoaSpermOva

Viktor Hamburger's Study of Central-Peripheral Relations in the Development of Nervous System

By: Lijing Jiang | Published: Nov 19, 2010

An important question throughout the history of embryology is whether the formation of a biological structure is predetermined or shaped by its…

Hamburger, Viktor, 1900-2001ExperimentsNervous SystemCell Death

Charles Darwin's Theory of Pangenesis

By: Yawen Zou | Published: Jul 20, 2014

In 1868 in England, Charles Darwin proposed his pangenesis theory to describe the units of inheritance between parents and offspring and the…

HeredityDarwin, Charles, 1809-1882ReproductionEvolutionNatural selection

Christopher Polge and Lionel Edward Aston Rowson’s Experiments on the Freezing of Bull Spermatozoa (1950–1952)

By: Bailey Renee | Published: Dec 19, 2017

In 1952, researchers Christopher Polge and Lionel Edward Aston Rowson, who worked at the Animal Research Center in Cambridge, England, detailed…

GlycerinCryopreservationSpermatozoaMicroorganisms--CryopreservationExperiments

Camillo Golgi (1843–1926)

By: Isra Mishqat | Published: Feb 23, 2017

Camillo Golgi studied the central nervous system during the late nineteenth and early twentieth centuries in Italy, and he developed a staining…

Nerve TissueGolgi ApparatusSilver NitrateNervous SystemNobel Prize winners

Craig C. Mello (1960- )

By: May Catherine | Published: Nov 30, 2011

Craig C. Mello is an American developmental biologist and Nobel Laureate, who helped discover RNA interference (RNAi). Along with his colleague…

PeopleRNA InterferenceBiography

The Hershey-Chase Experiments (1952), by Alfred Hershey and Martha Chase

By: Victoria Hernandez | Published: Jun 23, 2019

In 1951 and 1952, Alfred Hershey and Martha Chase conducted a series of experiments at the Carnegie Institute of Washington in Cold Spring Harbor,…

BacteriophagesDNACold Spring Harbor LaboratoryProtein PrecursorsAmino Acid Sequence

Niemann-Pick Disease

By: Tristan Cooper-Roth | Published: Oct 11, 2010

In 1914 Albert Niemann, a German pediatrician who primarily studied infant metabolism, published a description of an Ashkenazi Jewish infant with…

Niemann-Pick DiseasesHuman DevelopmentCongenital Disorders

History of the Monash IVF Research Program from 1971 to 1989

By: Whitney Alexandra Tuoti | Published: Sep 14, 2020

In 1971, a group of researchers founded the Monash IVF Research Program with the mission to discover how in vitro fertilization, or IVF, techniques…

OrganizationFertilization in VitroFertilization in vitro, HumanFertilization in vitro, Human--Moral and ethical aspectsMicropropagation

The Process of Implantation of Embryos in Primates

By: Justin M. Wolter | Published: Mar 21, 2013

Implantation is a process in which a developing embryo, moving as a blastocyst through a uterus, makes contact with the uterine wall and remains…

FetusPregnancyEmbryologyDevelopmental BiologyEmbryos