Chimerism

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Human Chimerism -manifest as the presence of two sets of DNA.

the human chimera is evolved as fraternal twins , siblings which have developed from two egg cells fertilised by two normal sperm . At a point early in the embryonic development , the two non-identical twin embryos merge together instead of growing on their own . This results in one whole body which is made of two distinct different sets of genes.[1]

Types of chimersim: microchimerism, teragametic chimerism .

References

  1. http://www.ncbi.nlm.nih.gov/pubmed/17917028


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