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Red Hair Genetics
2
Pheomelanin
(red hair)
Inheritance
Genetics
Melanocortin-1 receptor
What is effected
The MC1R gene is located on the 16 Chromosome. When this gene is mutated, in several different combinations, the red pigment is produced.
- D2494H is the most common mutation across te board
- R160W is the irish common mutation
- R151C mutation allows that person to be more responsiveness to pain
- D84E raises the risk for melanoma
- V92M causes the red-beard in men
Recessive
MC1R is a recessive trait, which takes both parents to have the same or different types of possible gene mutations of the MC1R gene.
Dominant or Recessive
Testing
Diagnosis
Many DNA or ancestry sites are now testing for the "ginger gene"
How to Test
All you have to do is spit into a tube and send it off to a lab
Test
Effects
Symptoms
Positive
- Produces vitamin D
- Rarely go gray
- Sensitive to painkillers
Negative
- Higher risk for certain diseases
- Need more anesthetic
- Extremely fare and sensitive skin
Vitamin D
Due to lowered levels of melanin in the skin, redheads are able to absorb more vitamin D in low light areas or with less time in the sun.
Diseases
Parkinson's
- Have twice the likely hood to develop
Melanoma/Skin Cancer
- Due to having fare skin, sunburns penetrate deeper and have a lasting effect
Treatment
Only supportive care can be provided for the symptoms
Dermatology
Is the study of the skin and the way it interacts with the world around it
Dermatology
Fun Facts
Facts
- The combination of Ginger hair and Blue eyes is the rarest in the world
- Prince Henry has red hair
- Only 1% - 2% of the world's population has red hair
Cites
- https://www.livescience.com/39095-redhead-health-risks.html
- https://www.researchgate.net/figure/MC1R-gene-location-on-chromosome-16p243-Retrieved-from_fig2_259809675
- https://www.eupedia.com/genetics/dna_traits_list.shtml#rufosity
- https://www.livescience.com/39095-redhead-health-risks.html
- https://academic.oup.com/hmg/article/9/17/2531/619678
- https://www.medicaldaily.com/8-ways-having-red-hair-affects-persons-health-pain-sex-348198
- https://www.livescience.com/26633-redhead-dna-gene.html