Y Chromosome Change
Name: Terry W.
Does the Y chromosome change in the male line? For
example would my great great great grandfather have had an identical Y to
There is a low rate of mutation for all DNA...but his Y chromosome would be
close if not identical to yours.
Peter Faletra Ph.D.
Office of Science
Department of Energy
The Y chromosome is passed from father to son and can be used to trace
lineages. However, DNA does mutate at a fairly constant rate. When
scientists trace chromosomes they take this mutation rate into account.
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Update: June 2012