What does cm mean in DNA matches?

Another way to express the match quality between two individuals is by using the match probability or match probability unit (mpu). This is a measure of statistical significance of a match calculated as the number of matches expected by chance between two unrelated DNA profiles.

What does cm mean in DNA match?

In short, the number is a measurement of the size of the match between the two dna profiles. The higher the number, the more matches you have between the two profiles.

What does cm mean in DNA profiling?

A match between two profiles is said to be a 1 cM match if their genomes match on about 1 in every 1,000 spots or if they share at least a segment of their DNA that matches at the location of 1 cM in length. If two people match at a higher level (2 cM or lower), then it is likely that they are closely related.

What does cm mean in DNA matches?

When discussing autosomal DNA matches, the length of matching segments on a chromosome is often given in cM. cM is a genetic map unit – a measure of the distance on a chromosome in millions of base pairs (bp). A cM is equivalent to 1,000 bp.

What is cm mean in DNA matches?

You may have seen a DNA match percentage quoted in terms of cM or centimorgans. It’s not as confusing as it sounds. The number of cM is actually the length of each chromosome in your DNA in centimorgans. The probability that two people have a match in a given location on a chromosome is based on the length of that chromosome and the number of cM that match that location. The longer the match, the higher the probability.