The revised Cambridge Reference Sequence (rCRS) is the revised sequence based on the first mtDNA sequence completed (Cambridge Reference Sequence).

A protein that recognizes a certain sequence of DNA and cuts the DNA at that site.

See: DNA Replication

Recombination is the mixing of the DNA on each chromosome that you receive from your mother and father. Different chromosomes and different parts of each chromosome are more or less likely to recombine in a [...]

Recombinational Loss of Heterozygosity (recLOH) is a process by which one copy of genetic code is copied over others. The result is identical values. In genetic genealogy, this is most significant for the Y chromosome. [...]