Two green-eyed parents are likely to have a green-eyed child, although there are exceptions. Two hazel-eyed parents are likely to have a hazel-eyed child, although a different eye color could emerge. If one of the grandparents has blue eyes, the odds of having a baby with blue eyes increases slightly.
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 appearance of blue, green, and hazel eyes results from the Tyndall scattering of light in the stroma, a phenomenon similar to that which accounts for the blueness of the sky called Rayleigh scattering. Neither blue nor green pigments are ever present in the human iris or ocular fluid.
There are two main types of hazel eyes: those with brown as the dominant color in the iris and those with green as the dominant color. While all hazel eyes will have a combination of green and brown colors, the difference in dominant colors is why hazel eyes can appear either mostly green or mostly brown.
Hazel eyes can occur in people of any ancestry, but they're particularly common in those of European or Middle Eastern descent. And while the exact genetics of hazel eyes are still not fully understood, we do know that multiple genes determine them.
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.
As a baby grows, melanin continues to develop. If a blue-eyed newborn develops more melanin in their irises, their eyes might darken or turn brown or hazel. This change usually happens in the baby's first year.
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.
Green is the rarest eye color of the more common colors. Outside of a few exceptions, nearly everyone has eyes that are brown, blue, green or somewhere in between. Other colors like gray or hazel are less common.
If the brown-eyed mother carried the green allele (bG), she could pass the green allele on 50% of the time, so when married up with the father's blue allele, they could have a green-eyed child.
Essentially, green eyes are unique. Most common in Western, Northern, and Central Europe, green eyes often point to German or Celtic ancestry. Currently, they can be found most often in Iceland, the Netherlands, Scotland, Britain, and Scandinavia.
Eye color inheritance isn't determined by one or two traits, but by at least 16 different genes. This means that if you have blue or brown eyes and the right genes, you might end up with a bouncing hazel baby. There's actually no hazel, green, or blue pigment present in the iris (the colored part of the eye.)
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.
What about hazel eyes? Hazel eyes are hard to predict because it's typically a mixture of brown, green and amber shades. 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.
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!
In most people, the answer is no. Eye color fully matures in infancy and remains the same for life.
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.
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.
Pupil size can be affected by your emotions, which is why some people may think their eyes change color when they are feeling angry, sad, etc. However, while your eye may look momentarily different, your actual eye color isn't changing. Hazel eyes can often appear to change colors more than other eye colors.
All men inherit a Y chromosome from their father, which means all traits that are only found on the Y chromosome come from dad, not mom. The Supporting Evidence: Y-linked traits follow a clear paternal lineage.
Two brown-eyed parents are likely to have a brown-eyed child, but could potentially have a child with blue, green or hazel eyes, depending on the combination of genes from each parent.
If, say, my wife was also blonde and blue-eyed, would it somehow lessen the chances of our children being blonde and blue-eyed? Yes, grandparents' genes can affect how their grandchildren look.