During pregnancy, some of the baby’s DNA from the placenta crosses into your bloodstream. After your blood test, the Generation NIPT tests this DNA to identify certain chromosome conditions in your pregnancy. The Generation test takes a deeper approach to the science, using an advanced technology called "Massively Parallel Sequencing" to analyse millions of DNA fragments per sample and accurately count the number of chromosomes present to determine if there are too many or too few copies of the tested chromosomes in your baby.