What Colour are internal organs?
The blood itself varies in color from bright red when oxygenated to very dark near black due to deoxygenation and the presence of all those things that need to be filtered out of the blood. Many of the internal organs are various shades of red due to the presence of a blood supply.
What makes skin color differ from person to person?
People have different skin colors mainly because their melanocytes produce different amount and kinds of melanin. Differences in skin color are also attributed to differences in size and distribution of melanosomes in the skin. Melanocytes produce two types of melanin.
Do organs have melanin?
The melanin pigment was present in all of the tissue layers of most organs, while the melanin pigment was found in only specific layers of some of the organs.
What three things determine skin color and vary person to person?
Skin Color/Condition Skin color varies considerably from individual to individual and is generally determined by the presence of melanocytes, carotene, oxygenated hemoglobin, and local blood flow. Melanocytes, found in the deep basal layer of the epidermis, contain brown granules called melanin.
What does the colour of the body depend on?
Skin colour is primarily determined by genetic inheritance but exposure to sunlight also alters skin colour. There are six skin types, fair skin that always burn, dark skin that never burns and everything in between. Melanin is the pigment that determines skin colour as well as hair and eye colour.
Does white skin have melanin?
Human skin comes in a wide variety of colours, ranging from shades of dark brown to almost white. Levels of melanin are primarily determined by genetics; individuals born to fair skinned parents will inherit their parent’s fair skin, as individuals born to dark skinned parents will inherit dark skin.
What is variation in human skin color an example of?
Polygenic Inheritance: Human skin color is a good example of polygenic (multiple gene) inheritance.