Question: What does genetic distance mean in Family Tree DNA?

Genetic Distance – There are two meanings for Genetic Distance: Genetic Distance is the number of differences, or mutations, between two sets of results. A genetic distance of zero means there are no differences in the results being compared against one another, i.e., an exact match.

What does a genetic distance of 5 mean?

“Genetic distance” is the number of mutation “steps” or mismatches between any two individuals. A genetic distance of 5 or greater indicates that the individuals did not have a common male-line ancestor within a genealogical time frame. …

What does a genetic distance of 9 mean?

9. Only Possibly Related. A 102/111 match indicates a distant cousinship with a chance of a genealogical relationship. Over half of matches at this level are related as 13th cousins or closer. Most matches at this level are related as or more recently than 20th cousins.

What does Y DNA 67 mean?

Having many Y-DNA matches means you have a more common Y-DNA signature (haplotype). This can mean that your lineage has survived and reproduced well. As a result, many people share the same signature.

What does genetic distance 12% mean?

A perfect 12/12 match between two men who share a common surname (or variant) means they likely share a common male ancestor within the genealogical time frame. … An 11/12 match between two men who share a common surname (or variant) means they may share a common male ancestor within the genealogical time frame.

IT IS INTERESTING:  Frequent question: How do you share tree on FamilySearch?

Which human population has the most genetic variation?

This is because most variation is within, rather than between, races. On average, any local population contains 85% of all human genetic variation, and any continent contains 94%. This is because humans have always migrated and mixed their genes.

What does a genetic difference of 1 mean?

Genetic distance is determined by the number of differences in the count of repeats of the marker or markers that did not match. A genetic distance of one means the marker which did not match was only one repeat away from being a match.

What is Y DNA 37?

A 37/37 match between two men who share a common surname (or variant) means they share a common male ancestor. Their relatedness is extremely close with the common ancestor predicted, 50% of the time, in 5 generations or less and over a 95% probability within 8 generations.

How is genetic distance different from physical distance on a chromosome?

Genetic distance is a value used to reflect a degree of genetic divergence. Statistical distances like a genetic distance are not related to physical space at all – they are measures of statistical difference/similarity (that is they are measures of the difference between two probability distributions).

Family heirloom