What percentage of DNA is shared between cousins?
12.5\%
Percent DNA Shared by Relationship
| Relationship | Average \% DNA Shared | Range |
|---|---|---|
| Parent / Child Full Sibling | 50\% | Varies by specific relationship |
| Grandparent / Grandchild Aunt / Uncle Niece / Nephew Half Sibling | 25\% | Varies by specific relationship |
| 1st Cousin | 12.5\% | 7.31\% – 13.8\% |
| 1st Cousin once removed | 6.25\% | 3.3\% – 8.51\% |
How much cM DNA do 1st cousins share?
You usually share about 850 cM with a first cousin, but that number could be as low as 553 or as high as 1,225 cM. Likewise, a single shared-cM value could indicate a variety of relationships. For example, 1,200 shared cM could indicate a first cousin, great-grandparent, grandparent, or great-niece.
How much DNA do I share with my children?
Like siblings, parents and children share 50 percent of their DNA with one another. While the shared DNA between full siblings includes 25 percent of the mother’s DNA and 25 percent of the father’s DNA, the DNA shared between a parent and child is 50 percent of that parent’s DNA.
Do you share more DNA with parents or siblings?
Average Percent DNA Shared Between Relatives
| Relationship | Average \% DNA Shared | Range |
|---|---|---|
| Identical Twin | 100\% | N/A |
| Parent / Child | 50\% (but 47.5\% for father-son relationships) | N/A |
| Full Sibling | 50\% | 38\% – 61\% |
| Grandparent / Grandchild Aunt / Uncle Niece / Nephew Half Sibling | 25\% | 17\% – 34\% |
How much DNA do fathers and daughters share?
We know that on average, a child shares 50\% of their DNA with each parent, and siblings have 50\% of their DNA in common.
https://www.youtube.com/watch?v=NRC64H5s_ak