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Brown eyes

Brown eyesThe vast majority of the world's people have dark eyes, ranging from brown to nearly black. Light brown eyes are also present in many people, but to a lesser extent. Most of the original inhabitants of Africa, Asia, and the Americas have brown eyes. Brown eyes are also found in Europe, Oceania and North America, though within European populations they are not predominant to the same extent. Brown also happens to be the most dominant eye color in any gene.


Black eyes

Black eyesPeople with very dark brown irises may appear to have black eyes. This is fairly common in people of African, Asian and, Native American descent.


Hazel eyes

An example of Hazel eyesHazel is usually used to describe eyes that contain elements of both green eyes and brown eyes, sometimes transitioning from green at the edges to brown around the pupil. This should not be confused with irises that display a brown, yellow, or copper-colored ring around the pupil, as in the grey iris shown below. Hazel eyes are also known as light brown eyes. They are dominant (not including in other continents) in middle European countries such as middle of Russia, Belarus, Ukraine, south and middle of Poland, south and middle of Germany, north of France, Switzerland, north of Italy, Slovenia and other. This color of eyes is dominant as yellow and green colors.

Blue eyes

Vibrant blue eyes are relatively common throughout Europe, especially in Northern Europe, including the northern Baltics and in East Central Europe.Among human phenotypes, blue eyes are a relatively rare eye color. They are found mainly in people of northern European and eastern European descent, and to a lesser extent, in people of southern Europe, the Middle East, North Africa and Central Asia. South Asians may also have blue eyes, but this is uncommon, except amongst Pathans and Parsis in Pakistan, Gujarat, Rajasthan, in Kashmir and Punjab. Finland has the highest percentage of blue-eyed people. Many Caucasian babies are born with blue eyes, though their eyes will darken, or change color. Most infants' eye color is set within a couple of days to a couple of weeks, though some people's eye color will continue to change for a number of years.

Blue is the colour of the indole monomer that when polymerised forms melanin.[citation needed] . If both alleles for brown eyes (a polymerase gene) are absent or damaged, the blue colour remains. Hence blue eye color is a recessive trait.

In the mid-20th century after the dawn of color films, blue eyes were considered very desirable in those aspiring to be Hollywood actors and actresses. This became less true toward the latter half of that century.

A 2002 study found the prevalence of blue eye color among non-Hispanic whites in the United States to be 57.4% for those born between 1899 and 1905 compared to 33.8% for those born between 1936 and 1951[5].


Grey eyes

A grey eye with a copper-colored ring around the pupilGrey eyes are (an often lighter) variant of blue eyes. A wide variety of shades of grey exist, from the almost white (light grey) to dark.

The underlying grey color may be tinted with various other colors, as in the greenish-grey eyes in the picture. "Steel blue" eyes are also found, ranging from a slightly desaturated blue to light blue-grey.

A yellow-, amber- or copper-colored ring is commonly seen around the pupil. This is a normal part of the iris, and should not be confused with Kayser-Fleischer rings. As with other colors, grey eyes are often seen to change color depending on the surrounding colors.





Green eyes

Green eyesGreen eyes are rarer than brown, blue, and grey eyes, and are most often found in people of Celtic, Germanic, and Slavic descent. Hungarians have the highest percentage of green eyes of any population, close to 20%. Interestingly, green eyes are also found, though in far lower proportions, from the Middle East to southern Asia. They are so common among Pashtuns that in Pakistan, Pashtuns are often called "Hare Ankheian Vaale": the green-eyed people.

One of the most famous photographs ever published by National Geographic was a close-up of Sharbat Gula, a Pashtun girl with startling green eyes, taken in western Afghanistan by Steve McCurry in 1984. Details of her irises captured by the photograph were used to confirm her identity after she was relocated in 2003.


A startling mix of gray, green and gold, found in a male of Germanic descent.
Blue-Green eyes

Blue-green eyes, here with a yellow ring around the pupil, may appear to change colorA variant of blue eyes, blue-green eyes are quite rare and usually consist of an iris with a predominantly blue color, usually darker blue, with green streaks or stippling caused by a yellow- or copper-colored overlay. Yellow-, amber-, or copper-colored rings are often present around the pupil.

The exact color is often perceived to vary according to its surroundings. Wearing lighter blue colors or getting tanned tends to emphasize the blue components. Wearing bright red, green, and shades of yellow or brown can emphasize green components, or even give the impression of grey.


Yellow Eyes
Yellow (Gold) eyes is also a dominant color of eyes in Central Europe like Hazel and Green eyes.


Violet Eyes
Violet eyes are extremely rare and a variation of blue eyes. Light brown eyes less rarely but still rarely have violet specks in them. They are believed to be caused by eyes with so little pigmentation that the red and blue blood vessels show through causing a violet color. A example of violet eyes is Elizabeth Taylor.


Red eyes
In animals (including humans) who have albinism, the irises may appear red due to a lack of any pigment — the iris takes on the color of the blood. The general genes for albinism affect eye color, and there are some more localized color genes as well, such as occular albinism.

The red-eye effect commonly appears in photographs taken with a flash, especially in those with light eyes.


Heterochromia
Main article: Heterochromia
Heterochromia (also known as a heterochromia iridis or heterochromia iridium) is an ocular condition in which one iris is a different color from the other iris (complete heterochromia), or where the part of one iris is a different color from the remainder (partial heterochromia or sectoral heterochromia). This uncommon condition usually results due to uneven melanin content. A number of causes are responsible, including genetics and Waardenburg syndrome. Trauma and certain medications can also cause increased or decreased pigmentation in one eye. Rock star David Bowie is said to have heterochromia iridium, apparently due to an eye injury incurred in his youth (in fact, he has his pupil permanently dilated, which makes the injured eye lose pigment and therefore appear green). Gracie Allen had two eyes of startlingly different colors, which some believe influenced her decision to stop acting when color television was widely adopted. Actor Joe Pesci and actresses Mila Kunis and Kate Bosworth also have different colored eyes. The French scientist Louis Pasteur, who proved the germ theory of disease, is also known to have had a green and a blue eye. On occasion the condition of having two different colored eyes is caused by blood staining the iris after sustaining injury.


Genetics
Three gene pairs controlling human eye color are known. Two of the gene pairs occur on chromosome pair 15 and one occurs on chromosome pair 19. The bey 2 gene (EYCL3), on chromosome 15, has a brown and a blue allele. A second gene (EYCL1), located on chromosome 19 (the gey gene) has a blue and a green allele. A third gene, bey 1, located on chromosome 15, is a central brown eye color gene.

Geneticists have designed a model using the bey 2 and gey gene pairs that explains the inheritance of blue, green and brown eyes. In this model the bey 2 gene has a brown and a blue allele. The brown allele is always dominant over the blue allele so even if a person is heterozygous (one brown and one blue allele) for the bey 2 gene on chromosome 15 the brown allele will be expressed. The gey gene also has two alleles, one green and one blue. The green allele is dominant to the blue allele on either chromosome but is recessive to the brown allele on chromosome 15. This means that there is a dominance order among the two gene pairs. If a person has a brown allele on chromosome 15 and all other alleles are blue or green the person will have brown eyes. If there is a green allele on chromosome 19 and the rest of the alleles are blue, eye color will be green. Blue eyes will occur only if all four alleles are for blue eyes. This model explains the inheritance of blue, brown and green eyes but cannot account for gray, hazel or multiple shades of brown, blue, green and gray eyes. It cannot explain how two blue-eyed parents can produce a brown-eyed child or how eye color can change over time. This suggests that there are other genes, yet to be discovered, that determine eye color or that modify the expression of the known eye color genes.

2006-06-17 05:44:06 · answer #1 · answered by zquax 2 · 1 1

Yes they can, but only if both parents have a recessive green eyed gene (meaning the gene isn't the dominant one, the one that made the parents have the blue or brown eyes). If only one parent has the green eyed gene then no a blue eyed mom and a brown eyed dad could not have a green eyed baby. Hope this helps, :D

2016-05-19 22:48:37 · answer #2 · answered by Anonymous · 0 0

yes because a babies traits come from the genetics of both families. Maybe Dad has green eyes but dad's mom has brown eyes.....it is not just the mom and dad that baby takes after.

2006-06-17 05:44:11 · answer #3 · answered by geet840 5 · 0 0

Certainly. Blue eyes are considered a recessive gene, green eyes to a lesser degree. Brown eyes are a dominant gene. Even though your own eyes may be blue that does not mean that your genes do not carry the brown eye gene; your children could easily have brown eyes and it is fairly likely that they will.

2006-06-17 05:48:22 · answer #4 · answered by Anonymous · 0 0

I have green eyes, my husband has lt brown/hazel eyes and our son has beautiful gray blue eyes! So I guess it is poss. Look down the line on both sides of the family, with Biology anything is poss!!

2006-06-17 05:44:55 · answer #5 · answered by dnmhbk 2 · 0 0

Yeah. Obviously it's a family trait, even if not from the parents. And brown eyes are the most common in the world...:P

2006-06-17 05:43:53 · answer #6 · answered by akhanevans2 1 · 0 0

Yes if brown eyes run in your family, I have dark brown eyes as well as my husband,but my daughter has light green beautiful eyes like her grandma....

2006-06-17 05:44:51 · answer #7 · answered by gladys 3 · 0 0

Yes, it is. Did the grandparents on either side have brown eyes?

2006-06-17 06:04:59 · answer #8 · answered by June D 1 · 0 0

yes. brown eyes often carry a dominate gene if someone in your family have brown eyes like a grand parent or an aunt/uncle you could get them...

2006-06-17 05:44:54 · answer #9 · answered by highgamer6969 4 · 0 0

Yes, it is, if two of your grangparents have brown eyes.

2006-06-17 05:44:30 · answer #10 · answered by hotdogkate83 2 · 0 0

I don't think so, brown is usually dominant, so at least one of the baby's parents has to have brown eyes, too.

2006-06-17 05:43:16 · answer #11 · answered by Eudora 3 · 0 0

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