Ancestral Genetic Testing Technology

The following techniques are often used in ancestry gene testing:

1. SNP (Single Nucleotide Polymorphism)

• SNPs are used as the primary method of ancestry genetic testing; SNPs are points in a DNA sequence where one specific base is replaced by another, often indicating differences between population groups. This allows us to determine the region from which our ancestors came and their ethnic background.

2. Analysis of the Y chromosome

• To determine paternal roots, specific regions of the Y chromosome are analyzed, which are suitable for tracing paternal lineage because the Y chromosome is passed almost unchanged from father to son.

3. Mitochondrial DNA (mtDNA) analysis

• To determine maternal roots, mitochondrial DNA (mtDNA) is analyzed. mtDNA is passed from mother to child and allows us to trace maternal lineage.

Example of STR use:

STRs are used to identify specific individuals, such as for personal identification or to establish parent-child relationships. Specifically, STRs are suitable for cases where it is necessary to identify a specific person, such as DNA analysis of crime scene evidence or parent-child identification, and are less commonly used for ancestry research.

Therefore, it can be said that SNP analysis is the main focus of ancestry gene testing, and STR is not often used.