Tag SNP

A tag SNP, or single nucleotide polymorphism, is like a special marker on a gene that helps scientists figure out which version of the gene someone has. Imagine a giant puzzle that needs to be put together to better understand how our bodies work. The tag SNP helps scientists identify where the different puzzle pieces are, so they can start putting the puzzle together. The tag SNP is like a sign that helps scientists find and focus on the pieces they need to study. By studying these specific pieces, scientists are better able to understand how our bodies work and how to develop treatments for illnesses.