Scientists say that the DNA of babies three people & # 039; Secure & # 039;

from three people to provide DNA with a baby, is safe, according to a large study. by scientists at the Wellcome Trust Centre University of Newcastle

They try to help vulnerable women to transmission of serious genetic disorders to have a healthy child.

Last year, the UK was to adopt the first country, laws that would allow the procedure.

Fergus Walsh reports.

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