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There is a call to widen the availability of tests to screen unborn babies for potential health problems later in life.
It is one of several recommendations in a major report on the legal and ethical response to advances in gene technology.
Each year dozens line up for pre-implantation genetic diagnosis (PGD) to help screen their unborn babies for inherited diseases.
But the fear has always been will someone seek to take it a step further, into the murky world of designer babies?
"What could be done, what should be done? Those are the questions," says Molecular Geneticist, Associate Professor Don Love.
The authors of Otago University's human genome project believe perfect designer babies will never be achievable.
"Genes are part of our nature but what comes out of our genes has a lot to do with how we're nurtured and the environment that we live in," says Professor Mark Henaghan from the Human Genome Research Project.
The Law Foundation-sponsored research project has just delivered the last of three major reports tackling thorny ethical issues like this. The recommendations are aimed at law-makers, the medical profession and the public.
"As long as it's open for debate and up for debate I think we can use this information for the better of all of us," says Henaghan.
The first report three years ago recommended the use of PGD for screening embryos to weed out diseases like cystic fibrosis or Huntingdon's.
But this report says parents should also be able to screen unborn babies for lower-risk late-onset inherited diseases like genetic cancers and Alzheimers.
Some think we are not ready for that.
"Yes, you could do it but why would you do it? And have we got the resources to match the hope, that perhaps on some people's part, that this should be more widely used?" says Love.
The report grapples too with the issue of discrimination against a person because of their genetic flaws.
As it stands now, if you have a genetic test, you are required to disclose the results to insurance companies if you want cover.
But to protect consumers, this report recommends an independent body be set up, like a referee, to help work out which tests are suitable and to monitor how the insurance industry uses them.
