In my shared matches on AncestryDNA I am used to seeing matches to the children of my 2nd cousins that are less than the match I am to their parents.
However, when examining my sister's DNA I see what seems to be a surprising result where she shares more DNA with the child of a 2nd cousin than she does with our 2nd cousin.
I'll refer to our female 2nd cousin as 2C and to her son (our 2nd cousin once removed) as 2C1R.
- I have 169 centimorgans shared across 10 DNA segments with 2C, and 104 centimorgans shared across 6 DNA segments with 2C's son 2C1R
- my sister has 68 centimorgans shared across 6 DNA segments with 2C, and 94 centimorgans shared across 6 DNA segments with 2C's son 2C1R
Is it possible to explain what I think seems to be an anomaly?