Heritability and Genome-Wide Association Studies for Hair Color in a Dutch Twin Family Based Sample PMC
Table Of Content White or Gray Hair CERN Physicists Release Higgs Boson Discovery Data What About the Genes for Red Hair? Is blonde hair recessive or dominant? 2. DNA Sampling and Genotyping Scientists Decode Etruscan Shrew Genome Studying the complex genetics behind hair colour reveals how melanin affects us However, naturally, we are born with a certain hair color, which might be different from our friends, cousins, or even our family members. The fundamental factor in our body to determine our hair color is determined by the amount of a pigment called melanin in the hair. When MC1R is in an inactive condition, the melanocytes will produce pheomelanin, which causes light or red hair. This pigment lacks the feature of protecting the skin from sunlight. Semi-permanent color washes out over a period of time—typically four to six weeks, so root regrowth is less noticeable. The final color of each strand is affected by its original color and porosity, so there will be subtle variation...