New tests for genetic screening of unborn babies will not be 100 per cent accurate and may scare parents into believing their children will be born with a disability when they are healthy, a scientist has warned. Lord Robert Winston has made the comment in the wake of a recent study, in which researchers claimed that they could predict the whole genetic code of a foetus by taking a blood sample from a woman who was 18 weeks pregnant, and a swab of saliva from the father.
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