jan 1, 2010 - British researchers develop the first human embryo with genetic contributions from 3 parents.
Description:
By taking the chromosomes from one zygote and applying them to a zygote that has mitochondria but no chromosomes, researchers were able to produce an embryo from 3 parents. This technique can prevent hereditary, fatal-mitochondria diseases. This research has shown the DNA world that it is possible to combine zygotes to create a healthy embryo that has genetic contributions from 3 parents.
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