Yes, blue-eyed parents can definitely have a child with brown eyes. Or green or hazel eyes for that matter.
If both parents have blue eyes, the children will have blue eyes. If both parents have brown eyes, a quarter of the children will have blue eyes, and three quarters will have brown eyes. The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive.
A blue and a green-eyed parent will have all hazel-eyed kids. This is one of the reasons I like the modifier gene explanation so much. It can help explain how green and blue-eyed parents might have hazel-eyed kids.
The allele genes come in the form of brown, blue, or green, with brown being dominant, followed by green, and blue being the least dominant or what is called recessive. Given this information, you can determine what eye colors are dominant in the parents.
First, the answer is yes to both questions: two blue-eyed parents can produce green or brown-eyed children. Eye color is not the simple decision between the brown (or green) and blue versions of a single gene. There are many genes involved and eye color ranges from brown to hazel to green to blue to…
The laws of genetics state that eye color is inherited as follows: If both parents have blue eyes, the children will have blue eyes. The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive.
Hazel eyes are due to a combination of Rayleigh scattering and a moderate amount of melanin in the iris' anterior border layer. Hazel eyes often appear to shift in color from a brown to a green. Although hazel mostly consists of brown and green, the dominant color in the eye can either be brown/gold or green.
The way light scatters in hazel irises is a result of Rayleigh scattering, the same optical phenomenon that causes the sky to appear blue. Anyone can be born with hazel eyes, but it's most common in people of Brazilian, Middle Eastern, North African, or Spanish descent.
Why are hazel eyes so rare? Only about 5 percent of the population worldwide has the hazel eye genetic mutation. After brown eyes, they have the most melanin. . The combination of having less melanin (as with green eyes) and a lot of melanin (like brown eyes) make this eye color unique.
If both the parents have hazel eyes, there are 99% chances that the baby will also have hazel eyes. If both the parents have brown eyes, there is a 75% chance that their child will have brown eyes. If both the parents have green eyes, there are 99% chances that the baby will also have green eyes.
We learn that brown eye color is dominant, while blue eyes are recessive. By this logic, two blue-eyed parents couldn't have a child with light brown eyes, much less a child with hazel or even the more mysterious grey eyes. Turns out, many factors determine human eye color, including mutation and light. What is this?
Hazel eyes have flecks of gold, green, and brown, so it's best to complement them with warm-toned blondes, browns, and reds if you really want your eye color to stand out. If your hazel eyes have a lot of green in them, rich red shades like auburn and copper will work best for you.
Hazel eyes are sometimes mistaken for green or brown eyes. They are not as rare as green eyes, but are rarer than blue eyes. Only about 5 percent of the population worldwide has the hazel eye genetic mutation.
Hazel eyes mostly consist of shades of brown and green. Much like gray eyes, hazel eyes may appear to “change color” from green to light brown to gold.
Each parent will pass one copy of their eye color gene to their child. In this case, the mom will always pass B and the dad will always pass b. This means all of their kids will be Bb and have brown eyes. Each child will show the mom's dominant trait.
We found that green is the most popular lens colour, with brown coming in a close second, despite it being one of the most common eye colours. Although blue and hazel are seen as the most attractive eye colours for men and women they are surprisingly the least popular.
Hazel Eyes
Some say they're “hazelnut” and others call them “golden” or even “brownish green.” As with blue and green eyes, hazel eyes may appear to shift colors depending on the lighting, and even mood! People with hazel eyes are thought to be kind-hearted, curious and spontaneous.
If your eye color is Hazel, then your eye color personality reveals that you are imaginative, determined, adventurous, and open to trying new things.
Hazel eyes are more common in North Africa, the Middle East, and Brazil, as well as in people of Spanish heritage.
The mutation for hazel eyes occurs in the HERC2 gene. This gene regulates the OCA gene. The OCA gene is responsible for the production of melanin. There is a large amount of melanin in the iris of people with brown eyes.
Myth: Two blue-eyed parents can't produce a child with brown eyes. Fact: Two blue-eyed parents can have a child with brown eyes, although it's very rare. Likewise, two brown-eyed parents can have a child with blue eyes, although this is also uncommon.
Advantages of Blue Eyes
A big advantage to blue eyes is that research shows they might be linked to a lower risk of developing cataracts. Cataracts are clouding of the eye's lens. According to some studies, blue eyes may have evolved because these individuals were able to cope better with seasonal affective disorders.
Both parents have to pass along the blue eye gene in order for their child to have blue eyes. That doesn't necessarily mean that the parents themselves have to have blue eyes; it's possible they carry the gene, but it is recessive. However, a blue-eyed child is almost certain if both parents have blue eyes.