Ancestry V2 Chip

Background The Ancestry V2 chip is Ancestry.com's second microarray chip. It is a custom version of the Illumina OmniExpress Plus Genotyping BeadChip. Its their current chip. Microarray chips test a small percentage of SNPs on the human genome. Each letter the DNA code for the human genome (A, C, T, or G) is called a base [...]

2017-02-03T12:35:21+00:00 September 19th, 2016|Categories: Compendium|Tags: , |

Runs of Homozygosity (ROH)

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 [...]

2017-02-03T12:35:27+00:00 March 2nd, 2016|Categories: Compendium|