The 23andMe V2 chip was 23andMe’s second microarray chip. It is almost surely the Illumina HumanHap550 Genotyping BeadChip.
Runs of Homozygosity (ROH) are places in autosomal DNA where every position sampled in a length of DNA is homozygous. 3rd Party tools for Runs of Homozygosity (ROH) There are two 3rd party tools available to check your results for ROH. They are Dr. David Pike’s tool and the ROH tool at GEDMatch. Checking for [...]