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All sexually reproducing, multicellular diploid eukaryotes begin life as embryos. Understanding the stages of embryonic development is vital to…
EukaryotaEukaryotesOntogenySomites are blocks of mesoderm that are located on either side of the neural tube in the developing vertebrate embryo. Somites are precursor…
Somatic cellsSomitesHomeobox genes are a cluster of regulatory genes that are spatially and temporally expressed during early embryological development. They are…
Homeobox genesGenes, HomeoboxGeneticsThe purpose of regenerative medicine, especially tissue engineering, is to replace damaged tissue with new tissue that will allow the body to resume…
TechnologyStem CellsRegenerationmedicineThe discovery of hematopoietic stem cells (HSCs) provided a pioneering step in stem cell research. HSCs are a type of multipotent adult stem cell,…
Hematopoietic Stem CellsStem CellsmedicineCancerIn 1914 Albert Niemann, a German pediatrician who primarily studied infant metabolism, published a description of an Ashkenazi Jewish infant with…
Niemann-Pick DiseasesHuman DevelopmentCongenital DisordersAristotle's On the Generation of Animals is referred to in Latin as De Generatione animalium. As with many of Aristotle's writings, the exact date of…
LiteratureReproductionPublicationsphilosophyThomson, et al. v. Thompson, et al. was a lawsuit filed in the United States District Court for the District of Columbia on 8 May 2001 as Civil…
LawStem CellsNightlight Christian Adoptions et al. v. Thompson et al. was a lawsuit filed in the United States District Court for the District of Columbia on 8…
OrganizationStem CellsReproductionPrenatal exposure to alcohol (ethanol) results in a continuum of physical, neurological, behavioral, and learning defects collectively grouped under…
fetal alcohol syndromeReproductionHuman Development