acardiac twin
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Twin — Monozygotic ( identical ) twins A twin is one of two offspring produced in the same pregnancy.[1] Twins can either be monozygotic (in common parlance, identical ), meaning that they develop from one zygote that splits and forms two embryos, or… … Wikipedia
Parasitic twin — A parasitic twin (also known as an asymmetrical or unequal conjoined twin) is the result of the processes that produce vanishing twins and conjoined twins, and may represent a continuum between the two. Parasitic twins occur when a twin embryo… … Wikipedia
acardius — A twin without a heart that remains viable by using the placental circulation of its mate. a. acephalus acephalocardius; an acardiac conceptus in which the head and thoracic organs are absent; ribs and vertebrae may be present, and upper l … Medical dictionary
Acephaly (medicine) — DiseaseDisorder infobox Name = PAGENAME ICD10 = ICD10|Q|00|0|q|00 ICD9 = ICDO = Caption = OMIM = OMIM mult = MedlinePlus = eMedicineSubj = eMedicineTopic = DiseasesDB = Acephaly is a type of cephalic disorder. It literally means absence of the… … Wikipedia
sequence — The succession, or following, of one thing or event after another. [L. sequor, to follow] Alu sequences in the human genome a repeated, relatively conserved s. of about 300 bp that often contains a cleavage site for the restriction enzyme AluI… … Medical dictionary
Gemelos semi idénticos — Los gemelos semi idénticos (del inglés semi identical twins) son el resultado de una forma muy rara de gemelación en la que los hermanos heredan exactamente los mismos genes de su madre, pero distintos genes de su padre. Aunque se han encontrado… … Wikipedia Español
