Are you worried what companies are doing to make money from your personal data and who is getting their hands on it?

Amid the panic about Facebook and Cambridge Analytica, imagine if the data was not ‘likes’ and survey results, but your most intimate biological particulars - the details of your genome.

If the thought of companies sharing the DNA code which provides your own genetic instruction booklet makes you queasy, you are apparently not alone.

Privacy concerns about how companies could share gene data are one of the biggest fears holding people back from getting their DNA read by commercial companies, it is claimed.

Genomics, the science of mapping genomes, is set to revolutionise medicine and public health, allowing scientists to diagnose rare conditions, understand diseases like cancer and to develop better, more targeted drugs with fewer side effects.