Genetic Genealogy in Practice: Chapter 1 Questions
Genetic Genealogy in Practice by Blaine T. Bettinger, Debbie Parker Wayne. National Genealogical Socety; 2016 Chapter 1: Basic Genetics Questions to which you will want to know the answers What are the types of nuclear DNA? Autosomal Sex: X, Y What is the other DNA which can be tested for genealogical purpose? Mitochondrial Which test can be taken only by one sex? Y If the mother of a family has died, which of her children can be tested for mitochondrial DNA? Any or all of them From which parent do you get your Y dna ? Father Your X? Men: mother. Women: both What are the DNA variations tested for genealogical purposes? SNPs and STRs(Y). Both are often called "markers." What is a SNP? S ingle nucleotide p olymorphism What is an STR? S hort t andem r epeat How much of our DNA is identical to all other humans? 99.9% What is a DNA match? Enough matching DNA with a person above the threshold, usually 5-10 or 20 cM People with matching DNA segment(s) What is g