Debate and discussion of any biological questions not pertaining to a particular topic.

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Post by gmonique_08 » Wed Feb 08, 2006 4:32 pm

hi im in school still an my bioloy teacher started talking about Chimera and i was just wondering if yall had information about if this can really happen and if so where could i find more information?

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Post by zami'87. » Wed Feb 08, 2006 10:46 pm

Hi! Chimerism represents the presence of 2 or more genetically different cell lines(derived from 2 zygotes) in an individual.Note:Try not to mix term with mosaicism where individual consist of 2 or more cell lines derived from a single zygot(same genetic origin). In humans 2 kinds of chimeras exist:
Dispermic(result of double fertilization and then fusion of 2 zygotes-hermaphroditism can develop if 2 zygotes are of different sex).
Blood chimeras-result of exchange of cells between non-identical twins in utero(via placenta).

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Post by CoolJay221 » Thu Feb 09, 2006 7:09 pm

An organism, organ, or part consisting of two or more tissues of different genetic composition, produced as a result of organ transplant, grafting, or genetic engineering.
A substance, such as an antibody, created from the proteins or genes or two different species.
An individual who has received a transplant of genetically and immunologically different tissue.
A fanciful mental illusion or fabrication.
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