Autosomal DNA

From ISOGG Wiki

This page is a gateway to finding more information and resources on Autosomal DNA. Some portal pages may contain "Recommended Reading" and/or "Getting Started" sections which contain useful links.

Introduction to Autosomal DNA

Autosomal DNA is a term used in genetic genealogy to describe DNA which is inherited from the autosomal chromosomes. An autosome is any of the numbered chromosomes, as opposed to the sex chromosomes. Humans have 22 pairs of autosomes and one pair of sex chromosomes (the X chromosome and the Y chromosome). Autosomes are numbered roughly in relation to their sizes. That is, Chromosome 1 has approximately 2,800 genes, while chromosome 22 has approximately 750 genes. There is no established abbreviation for autosomal DNA: atDNA (more common) and auDNA are used.

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Cousin tree (with genetic kinship).png

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Portal Contents
DNA microarray

This is a complete listing of all the Wiki pages of relevance to the subject of autosomal DNA:


Autosomal STRs

Autosomal DNA tests

Autosomal DNA Projects

What to do with your autosomal DNA results

Technical terms