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Category: Making Sense of DNA

AncestryDNA’s Updated DNA Matches

February 27, 2019 thednageek 36d Comments

These features are now available to all users of AncestryDNA and no longer require opting into “beta testing”. For RootsTech…

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Posted in: Making Sense of DNA Filed under: AncestryDNA, color coding, DNA matches, filtering, RootsTech

AncestryDNA Is Using FIRs to Distinguish Full and Half Siblings

February 7, 2019 thednageek 99d Comments

Did you know that AncestryDNA is using fully-identical regions to distinguish full siblings from half siblings?  And apparently has been…

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Posted in: Making Sense of DNA Filed under: AncestryDNA, AncestryDNA Matching White Paper, full siblings, fully-identical regions, half siblings, relationship prediction

What’s in Your Toolbox? — DNA Painter Shared cM Project Tool

January 5, 2019 thednageek 7d Comments

Source: DNA Painter Shared cM Project Tool Tool Type: website Purpose: rank possible relationships given the shared amount of DNA…

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Posted in: Lagniappe, Making Sense of DNA Filed under: DNA Painter, probabilities, relationship prediction, Shared cM Project, Shared cM Project Tool

Gordon

July 27, 2018 thednageek 36d Comments

What can you do when you find out your parents were closely related?

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Posted in: Making Sense of DNA Filed under: adoptees, Are Your Parents Related, AYPR, GEDmatch, incest, ROH, Runs of homozygosity, segment mapping, simulations

Science the Heck Out of Your DNA — Part 7

July 9, 2018 thednageek 34d Comments

This is my 100th post! A special thanks to all of my readers for making blogging so much fun. Scroll…

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Posted in: Making Sense of DNA Filed under: adoptees, autosomal DNA, hypothesis testing, probability, relationship prediction, unknown parentage

DNA Basics: Mutations

April 24, 2018 thednageek 4d Comments

Variety is the spice of life, they say, but where does variety come from?  Genetically speaking, it comes from mutations.…

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Posted in: Making Sense of DNA Filed under: autosomal DNA, DNA basics, mitochondrial DNA, mutations, short tandem repeats (STRs), single nucleotide polymorphisms (SNPs), yDNA

DNA Basics: Mitochondrial DNA

April 19, 2018 thednageek 13d Comments

The first post of this series ended with a reference to different “types” of DNA. In truth, DNA is DNA,…

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Posted in: Making Sense of DNA Filed under: biology, DNA basics, haplogroups, mitochondrial DNA, mutations, SNPs

Do You Have a DNA Outlier?

March 22, 2018 thednageek 12d Comments

The probability approach to testing hypotheses that I described in the “Science the Heck Out of Your DNA” series relies…

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Posted in: Making Sense of DNA Filed under: outliers, relationship prediction, shared centimorgans

DNA Basics: What is DNA?

March 20, 2018 thednageek 6d Comments

Have you ever wondered what DNA does when it’s not helping you with your family history? Understanding its day job…

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Posted in: Making Sense of DNA Filed under: DNA basics, junk DNA, mutations, nucleotides

Science the Heck Out of Your DNA — Part 6

February 18, 2018 thednageek 14d Comments

Scroll down for links to other posts in this series. Ted, or When Close Relatives Aren’t Available About 3 years…

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Posted in: Making Sense of DNA Filed under: adoptees, autosomal DNA, hypothesis testing, probability, relationship prediction, unknown parentage

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