Identity by descent
Identical nucleotide sequence due to inheritance without recombination from a common ancestor / From Wikipedia, the free encyclopedia
Dear Wikiwand AI, let's keep it short by simply answering these key questions:
Can you list the top facts and stats about Identity by descent?
Summarize this article for a 10 year old
SHOW ALL QUESTIONS
Not to be confused with lineage-bonded society or isolation by distance, another concept in population genetics with the acronym "IBD".
A DNA segment is identical by state (IBS) in two or more individuals if they have identical nucleotide sequences in this segment. An IBS segment is identical by descent (IBD) in two or more individuals if they have inherited it from a common ancestor without recombination, that is, the segment has the same ancestral origin in these individuals. DNA segments that are IBD are IBS per definition, but segments that are not IBD can still be IBS due to the same mutations in different individuals or recombinations that do not alter the segment.[citation needed]