In the UK it's free if there is some reason to think you may be carrier: https://www.nhs.uk/conditions/genetic-and-genomic-testing/ https://www.nhs.uk/conditio

In the UK it's free if there is some reason to think you may be carrier: https://www.nhs.uk/conditions/genetic-and-genomic-testing/ https://www.nhs.uk/conditions/genetic-and-genomic-testing/ As the cost of doing it comes down, i would expect it to be offered more widely. I don't know if it will ever be cheap enough to offer to all prospective parents. Oddly, the cost of doing genetic tests does not scale at all linearly: https://www.rbht.nhs.uk/sites/nhs/files/Laboratories/CGGL%20NHS%20price%20list.pdf https://www.rbht.nhs.uk/sites/nhs/files/Laboratories/CGGL%20... (eg a single arrhythmia test is £650 - £900, but the whole panel is £1000, and then it's only another £150 to do multiple panels) Meanwhile, sequencing a whole genome is ~$1000: https://www.genome.gov/about-genomics/fact-sheets/DNA-Sequencing-Costs-Data https://www.genome.gov/about-genomics/fact-sheets/DNA-Sequen... Perhaps a lot of the cost is sample preparation, and the actual molecular genetics bit is dirt cheap.