humanhaircolor.blogspot.com
Human Hair Color: April 2009
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Sunday, April 12, 2009. Social role of hair. Dr Alan R. Rogers, an evolutionary geneticist at the University of Utah, used mutations in the MC1R gene to estimate when human skin darkened. He said humans may have gone through several genetic "clean sweeps" with light-skinned individuals dying off and dark-skinned individuals surviving. He estimates the last of these clean sweeps took place 1.2 million years ago. Therefore, humans have been hairless at least since that time. Human scalp hair normally grows...
humanhaircolor.blogspot.com
Human Hair Color: Hair is a protein
http://humanhaircolor.blogspot.com/2009/04/hair-is-protein.html
Sunday, April 12, 2009. Hair is a protein. Subscribe to: Post Comments (Atom). HOW TO TAKE CARE. Social role of hair. Hair is a protein. View my complete profile.
humanhaircolor.blogspot.com
Human Hair Color: Evolution of hair
http://humanhaircolor.blogspot.com/2009/04/evolution-of-hair.html
Sunday, April 12, 2009. Dr Alan R. Rogers, an evolutionary geneticist at the University of Utah, used mutations in the MC1R gene to estimate when human skin darkened. He said humans may have gone through several genetic "clean sweeps" with light-skinned individuals dying off and dark-skinned individuals surviving. He estimates the last of these clean sweeps took place 1.2 million years ago. Therefore, humans have been hairless at least since that time. Subscribe to: Post Comments (Atom). HOW TO TAKE CARE.
humanhaircolor.blogspot.com
Human Hair Color: Growing and removing
http://humanhaircolor.blogspot.com/2009/04/growing-and-removing.html
Sunday, April 12, 2009. Subscribe to: Post Comments (Atom). HOW TO TAKE CARE. Social role of hair. Hair is a protein. View my complete profile.
humanhaircolor.blogspot.com
Human Hair Color: Straight hair
http://humanhaircolor.blogspot.com/2009/04/straight-hair.html
Sunday, April 12, 2009. Subscribe to: Post Comments (Atom). HOW TO TAKE CARE. Social role of hair. Hair is a protein. View my complete profile.
humanhaircolor.blogspot.com
Human Hair Color: Distribution rate
http://humanhaircolor.blogspot.com/2009/04/distribution-rate.html
Sunday, April 12, 2009. Human scalp hair normally grows at a rate of 0.4 mm /day (incidentally human scalp hair grows at a rate four times that of human nails. Human nails grow at a rate of 0.1 mm/day). As far as the growth after death, it is a myth; the appearance of growth is actually caused by the retraction of skin as the surrounding tissue dehydrates, making nails and hair more prominent. Hair is genetically programmed to be straight, wavy, curly, or 'kinky,' and it can change over time.
humanhaircolor.blogspot.com
Human Hair Color: Hair types
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Sunday, April 12, 2009. Hair color map. Dark hair color in the map: black hair. Light hair colors: brown red fair and blonde hair variants. Human beings have three distinct types of hair:. Lanugo is fine hair that covers nearly the entire body of a fetus. Unless born prematurely, the fetus loses this layer of hair before birth. Lanugo also sometimes returns in cases of malnutrition or extreme anorexia nervosa, as the starved body attempts to insulate itself. Subscribe to: Post Comments (Atom).
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Human Hair Color: Tightly coiled hair
http://humanhaircolor.blogspot.com/2009/04/tightly-coiled-hair.html
Sunday, April 12, 2009. Subscribe to: Post Comments (Atom). HOW TO TAKE CARE. Social role of hair. Hair is a protein. View my complete profile.
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Human Hair Color: Hair Analysis
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Sunday, April 12, 2009. The soft, fine hair found on many nonhuman mammals is typically called fur. Subscribe to: Post Comments (Atom). HOW TO TAKE CARE. Social role of hair. Hair is a protein. View my complete profile.
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Human Hair Color: Site Map
http://humanhaircolor.blogspot.com/2009/04/site-map.html
Sunday, April 12, 2009. Social role of hair. Hair is a protein. Subscribe to: Post Comments (Atom). HOW TO TAKE CARE. Social role of hair. Hair is a protein. View my complete profile.