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Brown eye gene = B

Blue eye gene = b

Each person has two copies of the eye color gene in their genome, one inherited from each parent. Now if both parents only carry the gene for brown eyes, BB and BB, then their child will receive one B from each parent, ending up as BB. The same works for blue eyes, if that's the only gene both parents carry, bb and bb. Each parents gives on b to the child, who ends up as bb.

If you have one parent who only has the gene for brown eyes, BB, and one parent who only has the gene for blue eyes, bb, then all the children will have brown eyes. Example: One parent gives a B, the other gives a b. Bb = brown eyes. Here's why: When you have two alleles (coding sequences) from genes that are at odds with each other, one version will override the the other. When dealing with eye color, B always dominates b. But these children now carry the b gene in them, and could pass it down to their own children. Some of them, depending on the other parent, could end up with blue eyes.

If one parent is Bb, and the other is bb, then each time they have a child, there is a 50% chance it will have blue eyes. Example: First parent is Bb, second parent is bb, then their children will end up as either Bb, bb, Bb, bb. If both parents carry the genes for brown eyes and blue eyes, then each time they have a child, there is a 25% chance it will have blue eyes. Example: First parent is Bb, second parent is Bb, then their children will end up as either BB, Bb, Bb, bb.

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If a mother has hazel eyes and a father blue eyes can their child have blue eyes?

Yes, it is possible for the child to have blue eyes if both parents carry the blue eye gene. Eye color is determined by multiple genes, so there is a chance the child could inherit the blue eye gene from both parents.


Your mom eyes are brown and your dad's eyesv are gray and your brothers eyes are brown and your other brothers eyes are blue and you have green eyes why is that?

Brown eye color is dominant. Since the grandparents have blue eyes, which is recessive to brown, the parents with brown eyes can be carrying the blue eye color but the blue is not expressed. If both parents are carrying the blue eyed gene, the chances that a child would have blue eyes is 1 in 4. Yes, it is possible.


You have dark brown eyes and your husband has bright blue eyes your son has blue eyes with brown specks Why is this Are our genes trying to be the more dominant?

The presence of brown specks in your son's blue eyes suggests he has a mix of genes from both parents. It's possible he inherited the brown specks gene from you, while the blue eye gene from his father. In genetics, dominant and recessive genes can interact in complex ways, leading to unique eye colors like your son's.


How common are gray eyes in humans?

Most people have blue or brown eyes, but some people do have eyes that are a greyish color. People whose eyes are grey have eyes that look perfectly normal, except the iris is a different color from what the majority have.


What color eyes will your baby have is the male has blue eyes and the female has hazel?

It's difficult to predict with certainty, as eye color is a complex genetic trait. However, based on basic genetics, there is a possibility that the baby could have hazel eyes, as hazel is a dominant trait over blue.

Related Questions

Can someone with brown eyes and one with green eyes have a blue eyed child?

It is possible for a child with a brown-eyed parent and a green-eyed parent to have blue eyes if there is the trait for blue eyes in the child's genetics. Such as a grandparent with blue eyes.


Why would a Staffordshire bull terrier puppy have blue eyes and will they stay blue?

Some dogs do have blue eyes, mostly because of genetics and in that case it will stay blue.


Are blue eyes to be preferred with a horse in general?

The color of a horses eyes has no bearing on anything really.Blue eyes are caused by specific genetics.


Why royals have blue eyes?

There is no genetic reason for royals to have blue eyes specifically. Blue eyes are a result of genetics and can occur in any population, including royal families. The presence of blue eyes in royals is likely due to a combination of genetic variation and chance.


Explain through genetics why a white male cat and a black female can produce 4 black offspring?

I can't really explain in genetics, but I can in similarity. A colour of a Cat's fur can be like the colour of our eyes in a way. If one of your parents has brown eyes (with no trace of blue eyes) and the other had blue eyes, you would get brown eyes. So, the white Cat is the blue eyes and the black Cat is the brown eyes. Do you get that?


Do huskies always have blue eyes?

No, huskies do not always have blue eyes. While blue eyes are a common trait in huskies, they can also have brown, green, or even a mix of colors in their eyes. Eye color in huskies can vary and is determined by genetics.


Why does a black cow have blue eyes?

Genetics, and maybe a bit of luck that wasn't needed or asked for.


Can you make your baby naturally have blue eyes except genetics?

no......... unless you get contacts for your baby. is this a joke??


Do all white tigers have blue eyes?

No, not all white tigers have blue eyes. While blue eyes are a common trait in white tigers, they can also have green or amber eyes. Eye color in white tigers is determined by genetics and can vary within the population.


I have brown eyes both my parents also have brown eyes My partner has blue eyes and both his parents also have blue eyes What are the chances of my daughter's eyes being blue?

according to genetics your daughter would have a 25% chance of having blue eyes because in humans blue eyes is a reccessive trait and Brown is a dominant. also having blue eyes mean that your eyes are missing something to help prevent pink eye( fun fact)!


You have sky blue eyes your partner has dark grey eyes Will your daughter's eyes turn blue from blue grey?

I dont think so. Mine are still grey-blue =) (and listen to me cause I kno what I talking about!)


What does blue eye symbol mean?

Mean? Nothing. It is simply a product of certain genes. It has no meaning.