0_Wizard
I personally have brown hair , I heard red hair is only 1-2% of human population? What is your hair color?
Red hair (or ginger hair) occurs naturally in 1–2% of the human population.
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Red hair
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Human hair color
Hair color is the pigmentation of hair follicles due to two types of melanin: eumelanin and pheomelanin. Generally, if more eumelanin is present, the color of the hair is darker; if less eumelanin is present, the hair is lighter. The darker a person's natural hair color is, the more individual hair follicles they have on their scalp. Levels of melanin can vary over time causing a person's hair color to change, and it is possible to have hair follicles of more than one color on the same person. Particular hair colors are associated with ethnic groups. Gray or white hair is associated with age. The Fischer–Saller scale, named after Eugen Fischer and , is used in physical anthropology and medicine to determine the shades of hair color.
Red hair
Red hair (or ginger hair) occurs naturally in 1–2% of the human population. It occurs more frequently (2–6%) in people of northern or western European ancestry, and less frequently in other populations. Red hair appears most commonly in people with two copies of a recessive allele on chromosome 16 which produces an altered version of the MC1R protein. Red hair varies in hues from a deep burgundy or bright copper (reddish-brown or auburn) through to burnt orange or red-orange and strawberry blond. It is characterized by high levels of the reddish pigment pheomelanin and relatively low levels of the dark pigment eumelanin.
List of unidentified murder victims in the United States
Of the thousands of people murdered every year in the United States, some remain unidentified. Many victims are not identified for years or even decades after they were killed—as in the case of Tammy Jo Alexander, who was murdered in 1979 and remained unidentified until 2015. Including both murder victims and those who died of other causes, about 40,000 bodies remain unidentified in the United States. The body of a white female aged thirty-four to thirty-eight was found in Slaughter Creek, near the Sipsey River in Romulus, Tuscaloosa County, Alabama on April 18, 1982. The victim had been beaten, strangled and sexually assaulted.
Brown hair
Brown hair is the second most common human hair color, after black hair. It varies from light brown to almost black hair. It is characterized by higher levels of the dark pigment eumelanin and lower levels of the pale pigment pheomelanin. Its strands are thicker than those of fair hair but not as much as those of red hair. People with brown hair are often referred to as brunette, which in French is the feminine form of "brunet," the diminutive of "brun" (brown, brown-haired or dark-haired). Brown hair is common among populations in the Western world, especially among those from Central Europe, Southeastern Europe, Eastern Europe, Southern Europe, Southern Cone, the United States, and also some populations in the Greater Middle East where it transitions smoothly into black hair.
List of unidentified decedents in the United States
An unidentified decedent, or UID, is a deceased person whose legal identity is unable to be determined by law enforcement. Although the majority of individuals are identified soon after their bodies are recovered, it is not uncommon for bodies to remain unidentified for years or even decades. There are approximately 40,000 unidentified decedents in the United States at any given time. A deceased body can be identified in several different ways. Most commonly, a relative of the deceased identifies the body by sight. However, if a body is decomposed, skeletal, or unrecognizable due to severe facial trauma at the time of recovery, other methods must be used.
Blond
Blond (male), blonde (female), or fair hair, is a hair color characterized by low levels of the dark pigment eumelanin. The resultant visible hue depends on various factors, but always has some sort of yellowish color. The color can be from the very pale blond (caused by a patchy, scarce distribution of pigment) to reddish "strawberry" blond or golden-brownish ("sandy") blond colors (the latter with more eumelanin). On the Fischer–Saller scale, blond color ranges from A (light blond) to O (dark blond). The word "blond" is first documented in English in 1481 and derives from Old French "blund, blont", meaning "a colour midway between golden and light chestnut".
Introduction to genetics
Genetics is the study of genes—what they are, what they do, and how they work. Genes inside the nucleus of a cell are strung together in such a way that the sequence carries information: that information determines how living organisms inherit various features (phenotypic traits). For example, offspring produced by sexual reproduction usually look similar to each of their parents because they have inherited some of each of their parents' genes. Genetics identifies which features are inherited, and explains how these features pass from generation to generation. In addition to inheritance, genetics studies how genes are turned on and off to control what substances are made in a cell—gene expression; and how a cell divides—mitosis or meiosis.