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What happens if one parent has blue eyes and the other has green eyes?
Blue will always be recessive. If both parents have a blue allele, it is likely that the child will have blue eyes. However, if one parent has green eyes and the other blue, your child will most likely have green eyes, as green is dominant over blue.
Can a mutation change your eye color?
Some 6,000 to 10,000 years ago, a genetic mutation affecting one gene turned off the ability to produce enough melanin to color eyes brown causing blue eyes. This mutation arose in the OCA2 gene, the main gene responsible for determining eye color.
Will there be new eye colors in the future?
New eye colors could possibly continue to evolve as mutations build up over time. Also, as individuals of various shades of eye colors breed with one another, the blending of those polygenic traits may also result in the emergence of new shades of eye color.
What color eyes were a mutation?
People with blue eyes have a single, common ancestor, according to new research. A team of scientists has tracked down a genetic mutation that leads to blue eyes. The mutation occurred between 6,000 and 10,000 years ago.
Are blue eyes a genetic mutation?
Summary: New research shows that people with blue eyes have a single, common ancestor. Scientists have tracked down a genetic mutation which took place 6,000-10,000 years ago and is the cause of the eye color of all blue-eyed humans alive on the planet today.
Do eye colors continue to evolve?
The Continuing of Evolution. New eye colors could possibly continue to evolve as mutations build up over time. Also, as individuals of various shades of eye colors breed with one another, the blending of those polygenic traits may also result in the emergence of new shades of eye color.
What is the genetic basis for eye color?
Genetic Basis of Eye Color The main gene that controls eye color is relatively closely linked to the genes that cause skin color. It is believed that the ancient human ancestors all had dark brown or nearly black colored eyes and very dark hair (which is also controlled by linked genes to eye color and skin color).
Are blue eyes a dominant or recessive trait?
The condition of heterochromia, where the two eyes have different coloration, is also due to the interaction of the OCA2 and HERC2 genes. The occurrence of blue eyes is a recessive trait. The brown or black eye color is usually dominant over it.
Can a genetic mutation cause no change in the hair color?
In some cases, no change might be observed despite a genetic mutation. The color of human hair is a multifactorial trait that generally depends on the interaction between the eumelanin and pheomelanin pigments. These pigments are coded for by different forms of the MC1R gene.