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What causes a person to have blue eyes?

Updated: 8/11/2023
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11y ago

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KristyCalisto's tanned areolas!

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12y ago
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11y ago

Being over exposed to sun when young

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Q: What causes a person to have blue eyes?
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Related questions

What colour hair and eyes will the baby have if mother has red hair and blue eyes and father has dark blonde hair and blue eyes?

The senario in this question is an impossible one. If a person is born with blue eyes the person will always have blonde hair, its as simple as that. A person still may have blonde hair and not blue eyes, but if a person is born with blue eyes, then the person's natural hair color is blonde. To answer the question, the child will be born with blue eyes and brown hair.


What colour eyes does James Mcvey have?

Blue. But in person light blue eyes.


If a person has blue eyes what color is the person's iris?

uh..blue?


Is it possible for a person with brown-eyed parents and no recessive blue eye gene to have a blue-eyed child if their partner has blue eyes?

Yes, the child probably inherited the blue eyes from the person with blue eyes.


Can a person with green eyes and a person with hazel eyes have a baby with blue eyes?

yes and no it counts of heredity if your genes holds a blue eye gene then it is possible


What happens to person's blue eyes as they get older?

The blue gets lighter


What is one example of a mutation that causes an improved trait?

Blue eyes


What causes a blue ring around brown eyes?

High cholesterol


Why can a person with brown eyes carry blue eye alleles but a person with blue eyes cannot have a brown eye allele in their genotype?

Because the brown eyes allele is the dominant one.


What are the two recessive alleles for blue eyes?

Blue eyed people have two recessives for blue. It is expressed as bb. A person with brown eyes is BB. Brown is dominate over blue. However a person with brown eyes can carry the gene for blue and they would be called Bb.


Will people born with blue eyes go blind?

No, blue eyes is due to a chromosome, it's not a genetic disorder which causes humans to go blind.


You have brown eyes but your sister has blue what causes this?

Well if you have brown eyes there is a gene in the family for brown eyes but if your sister has blue eyes there is both a brown eyed gene and a blue eyed gene in your family so you either got it from your mom or your dad