When you are looking at these two values in cM: Longest Segment and Shared Segments, which is more important?
For example:
1. Mother has a cM of 98 for the Longest Segment and 508 for Shared Segments
2. Son has a cM of 97 for the Longest Segment and 297 for Shared Segments
In looking at the research by Bettinger, he says:
1. Half 1C average Shared vs Longest cM 458/75.
2. 1C1R average Shared vs Longest cM 440/62
3. Great Aunt Uncle average Shared vs Longest cM 844/86.
4. Great Grandparent average Shared vs Longest cM 856/102
If you were to give precedence to Longest Segment then Great Aunt/Uncle or Great Grandparent would be more appropriate, but if you give more weight to Share Segment value then Half 1C or 1C1R would be better.
I have attached the chart I used
For example:
1. Mother has a cM of 98 for the Longest Segment and 508 for Shared Segments
2. Son has a cM of 97 for the Longest Segment and 297 for Shared Segments
In looking at the research by Bettinger, he says:
1. Half 1C average Shared vs Longest cM 458/75.
2. 1C1R average Shared vs Longest cM 440/62
3. Great Aunt Uncle average Shared vs Longest cM 844/86.
4. Great Grandparent average Shared vs Longest cM 856/102
If you were to give precedence to Longest Segment then Great Aunt/Uncle or Great Grandparent would be more appropriate, but if you give more weight to Share Segment value then Half 1C or 1C1R would be better.
I have attached the chart I used
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