Yikes
My husband has dark brown hair, and I have blonde. How many generations back can a red hair recessive gene go for my daughter to have red hair? My hubby and I do not know anyone in our family within the last 2 generations that have this gene. My grandmother may have had red hair but My dad said she dyed it that color. Dont both parents have to have the gene for our child to have red hair? And will any of our future children have the gene too?
Who says Im bothered with it? I have no problems with her havign red hair, I was just curious on how she got it.
Answer
a recessive gene can go back for centuries, as long as there is a carrier.......... also, its likelihood of 25-50% of having another child with red hair
a recessive gene can go back for centuries, as long as there is a carrier.......... also, its likelihood of 25-50% of having another child with red hair
Will my baby have red hair?
Logans Mom
I have red hair & My boyfriend has red hair , what are the chances of us having a red headed child?
Answer
Your baby will most likely have red hair, if not blond or strawberry blond. Red hair is a recessive gene and can only be expressed if paired up with another recessive gene (another red or blonde gene). Since you and your boyfriend both have red hair that means that both of your genes have two matched recessive genes.
For each trait, there is a genotype and a phenotype. The phenotype is the trait that is expressed, in this case red hair is your phenotype. The genotype is the trait that is carried but not expressed. If your recessive gene were paired up with a dominant gene, the dominant gene will automatically be your phenotype. (Hence the name dominant).
So depending on how things match up, it is possible for two parents with brown hair and brown eyes, to have a baby with blond hair and blue eyes, because both parents can be carrying a recessive genotype that is dominated (brown hair and brown eyes are dominant, blond hair blue eyes are recessive). However it is impossible for two parents with blond hair and blue eyes to have a child with brown hair and brown eyes, because in order to have blond hair and blue eyes, you have to have both two recessive genes, because if you had a dominant gene it would become the phenotype (the gene that is expressed physically)
example
B- Dominant Brown hair
r- Recessive Red Hair
Br = brown hair
BB= brown hair
rr= red hair (no brown hair dominant gene)
So you and your current boyfriend could both be offering rr=red hair. That means there is no possible combination including B. The only possible combination with two rr genes is rr. But there is still a chance that one of you guys are carrying the recessive blond hair genotype (the gene that is not expressed). Thats why they may or may not have blond or strawberry blond hair.
But let's say you married a guy with Brown hair. If he is BB and you are rr, then all of your children will have brown hair because no matter how you match the genes up, there will always be a dominant brown gene in the mix. If he a carrier of a recessive red hair gene and is Br, then you got a 50-50 percent chance that your child will have red or brown hair.
Your baby will most likely have red hair, if not blond or strawberry blond. Red hair is a recessive gene and can only be expressed if paired up with another recessive gene (another red or blonde gene). Since you and your boyfriend both have red hair that means that both of your genes have two matched recessive genes.
For each trait, there is a genotype and a phenotype. The phenotype is the trait that is expressed, in this case red hair is your phenotype. The genotype is the trait that is carried but not expressed. If your recessive gene were paired up with a dominant gene, the dominant gene will automatically be your phenotype. (Hence the name dominant).
So depending on how things match up, it is possible for two parents with brown hair and brown eyes, to have a baby with blond hair and blue eyes, because both parents can be carrying a recessive genotype that is dominated (brown hair and brown eyes are dominant, blond hair blue eyes are recessive). However it is impossible for two parents with blond hair and blue eyes to have a child with brown hair and brown eyes, because in order to have blond hair and blue eyes, you have to have both two recessive genes, because if you had a dominant gene it would become the phenotype (the gene that is expressed physically)
example
B- Dominant Brown hair
r- Recessive Red Hair
Br = brown hair
BB= brown hair
rr= red hair (no brown hair dominant gene)
So you and your current boyfriend could both be offering rr=red hair. That means there is no possible combination including B. The only possible combination with two rr genes is rr. But there is still a chance that one of you guys are carrying the recessive blond hair genotype (the gene that is not expressed). Thats why they may or may not have blond or strawberry blond hair.
But let's say you married a guy with Brown hair. If he is BB and you are rr, then all of your children will have brown hair because no matter how you match the genes up, there will always be a dominant brown gene in the mix. If he a carrier of a recessive red hair gene and is Br, then you got a 50-50 percent chance that your child will have red or brown hair.
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Title Post: Question about recessive gene for red hair?
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Author: Yukie
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Rating: 92% based on 976 ratings. 5 user reviews.
Author: Yukie
Thanks For Coming To My Blog
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