How to identify paternal or maternal side of a pair of chromosome?

+2 votes
120 views
On the graphics of the Chromosome Browser of FTDNA, or the one from Gedmatch, is there anyway to identify which side of the pair of chromosome is paternal or maternal?
in Genealogy Help by Harry Angus G2G2 (2.9k points)
recategorized by Ellen Smith

You can use segment matching to analyse paternal and maternal segments and so build up a painting of each side of the chromosome. Take a look at the DNA Painter tool.

2 Answers

+3 votes
 
Best answer
With a single DNA sample, no you can't determine which came from which side. Chromosomes aren't tagged as to which side they came from. If you have additional DNA samples, you can start to do that. In Chromosome mapping it is best to have 3 siblings DNA to build the genome of the grandparents. Adding first cousins into the mix can allow sorting out sides.
by Doug McCallum G2G6 Pilot (424k points)
selected by Susan Laursen
+4 votes
Keep in mind that DNA segments can exhange between a pair of chromosomes.
by Fred Blair G2G6 Mach 1 (13.6k points)

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