Human skin color

Skin color is determined by five main pigments; melanin, keratin, melanoid, hemoglobin, and oxyhemoglobin. According to most researchers skin color first evolved from the Africans when they migrated to Asia and Europe. Human skin color is very diverse; it ranges all the way from dark brown to white. The Human Genome Project is one of the most known experiments to help scientists map the genome both physically and functionally. Human skin acts as a physical barrier that protects chemical and microbial factors that effects how a person looks. Human skin is made up of five layers, stratum corneum, stratum lucidern, stratum granolosum, stratum spinosum, and the basal layer. Two of the main skin color pigments keratin and melanin are found in human skin. Melanin is in the top two layers stratum corneum and lucidern. Keratin is in the bottom three layers stratum granolosum, spinisum, and the basal layer.…

The Beauty of Human Skin in Every Color The Beauty of Human Skin in Every Color is a TED talk by Angélica Dass that discusses racism and a project that collects the portraits of people of various skin colors. In the beginning of the talk, Angélica introduced her family background and described their skin colors by comparing it with other objects, such as chocolate, cinnamon, and pancake. This description invokes a positive association of skin colors, and it breaks the common notion of how…

DISCUSSION OF THE CAUSES OF HUMAN SKIN COLOR VARIATIONS The variation of human skin color is a complex phenomenon which have not yet been researched and studied conclusively. However, various researchers and academicians have given insight about the possible causes of this important trait. Different researches using people from different parts of the world, evaluation of their environments and diet and to some extent DNA analysis have given a variety of possible causes of human skin color…

Human evolution is the time by which humans change overtime. Humans develop characteristics and traits that enhance their abilities and chances for survival. Physical and behavior traits have been shown to have some relations with the common ancestors of apes. While human evolution occurs it coexists with the study of population genetics. Population genetics occurs when frequencies in alleles between populations are distributed. Plenty of researchers have used these two ideas to study how…

The human body, just like animals, has evolved over time. One of the greatest biological adaptations of the humans is skin color. Today, there are 7 billion different skin tones since no skin color is identical. However, in Africa, 100 thousand years ago that was certainly not the case.[Bryce] The evolution of skin color over the past 100 thousand years is due to the combination of three factors: skin exposure, ultraviolet rays, and Vitamin D. [Jablonski and Chaplin] These factors attribute to…

people and people who are specialized in the anthropology, genetics or biologist on race. From that video, all research and argues open my eyes about the race construction in our society. I conclude that the racial is rooted in a false believe that it is characterized by the physical appearances like hair color, skin color, eye shape, body shape and so on and these characters are the key points to classify the different races. Some people believe that musical traits, athletics’ performances,…

addition, there is no biological origin for classifying race based on skin color, other than based on biological or environmental variations in body form (Spradley…

‘race’ have any biological meaning in humans? TWO ORIGINAL REPORTS: Lin JY, Fisher DE. Melanocyte biology and skin pigmentation. Nature. 2007 [accessed 2017 Oct 3];445(7130):843–850. The research showed how pigmentation was controlled at a molecular level and how our skin’s response against harmful forces and skin cancer is tanning. The study talks about their recent advances in genetics that involve the process of how the genes have an effect on hair and skin. The article states that the skin…

Physical race refers to characteristics that are broad but apply to a wide range of individuals. Traditionally these characteristics are associated with skin, eye and hair color so as to form an identity that can be applied to a wide range of individuals. Sociological race refers to an idea of race within a social setting. That the ideas, behaviors and needs that individuals care for have created distinct lines-unique only to the specific area- of segregation. These lines detail how a society…

As the authors of “Skin Deep” state, “Our variation in skin color should be celebrated as one of the most visible manifestations of our evolution as a species.” I hope to enlighten you as to why they give creedence to that statement. It boils down to the authors concluding that various elements of natural selection, including reproductive health and migration, as well as cultural behaviors have influenced the variety of skin colors that we see today. To start with, the melanin in our skin…