Attention Deficit Disorder Prosthetic Memory Program

Animal Chimera

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An animal chimera is a single organism that is composed of two or more different populations of genetically distinct cells that originated from different zygotes involved in sexual reproduction. If the different cells have emerged from the same zygote, the organism is called a mosaic. Innate chimeras are formed from at least four parent cells (two fertilised eggs or early embryos fused together). Each population of cells keeps its own character and the resulting organism is a mixture of tissues. Cases of human chimerism have been documented.

This condition is either innate or it is synthetic, acquired for example through the infusion of allogeneic hematopoietic cells during transplantation or transfusion.

In nonidentical twins, innate chimerism occurs by means of blood-vessel anastomoses. The likelihood of offspring being a chimera is increased if it is created via in vitro fertilisation. Chimeras can often breed, but the fertility and type of offspring depends on which cell line gave rise to the ovaries or testes; varying degrees of intersex differences may result if one set of cells is genetically female and another genetically male.

Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
Animal Chimera - © Attention Deficit Disorder Prosthetic Memory Program
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