It is fascinating that your children also have red hair strands and your brother who shares only one parent with you have red hair, too. Everyone is different and the only real worry with having both copies of MC1R would be repeated exposure to the sun, increasing the risk of skin cancer. Other parents, however, wonder if their children will possess something more obvious: red hair. Answer: It is possible that your children will have red hair. Husband- brown hair, light green eyes, tans easily. Even if there is some increase in risk associated with certain forms of this gene, it's likely to be relatively small.
Redheads: The Genetics of Hair Color
The hair on my entire body is medium brown with red highlights. The parent with brown hair in this case is not a carrier of the red gene. My son's hair has also darkened, but you can see the red highlights in it. I know my hair is red, but it also has lots of other highlights. Some tests such as 23 and Me offer testing that includes three alleles from the MC1R gene. He has super dark, thick hair, but with red highlights. If your cousin received both recessive genes for light hair, then it would be possible for the effects of the red-hair gene to be visible.
Science shows redheads have genetic superpowers
Question: I am a true brunette with brown eyes and my husband has light brown hair with hazel eyes. Since they do not test for all known variants, they are often wrong at determining whether someone has red hair. People with red hair generally display the phenotype at birth it is more likely for a redhead to go from having red hair at birth to a darker hair color as they age because you naturally produce more eumelanin as you mature. Redheads feel hot and cold temperatures more severely than anyone else.
Are You Carrying the Redhead Gene?
Description: How is their baby's brown hair possible? A person with a malfunctioning MC1R gene will have blond or red hair, due to the lack of eumelanin, along with freckles. By Susannah Cahalan. Everyone has the MC1R gene, but some people carry mutations on the gene. The probabilities are impossible to predict unless we know the genotype of both parents.