9/16/2023 0 Comments Darker than dark colorThe skin color of people with light skin is determined mainly by the bluish-white connective tissue under the dermis and by the hemoglobin circulating in the veins of the dermis. Melanin is produced within the skin in cells called melanocytes and it is the main determinant of the skin color of darker-skin humans. The actual skin color of different humans is affected by many substances, although the single most important substance is the pigment melanin. Differences across populations evolved through natural selection or sexual selection, because of social norms and differences in environment, as well as regulations of the biochemical effects of ultraviolet radiation penetrating the skin. Differences in skin color among individuals is caused by variation in pigmentation, which is the result of genetics (inherited from one's biological parents and or individual gene alleles), exposure to the sun, natural and sexual selection, or all of these. Human skin color ranges from the darkest brown to the lightest hues. For animal skin pigmentation, see Biological pigment.Įxtended Coloured (Afrikaans: Kleurlinge or Bruinmense) family from South Africa showing some spectrum of human skin coloration
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |