The iris.
Brown is dominant and Green is somewhere in the middle. There are possibilities that this may occur but without the genes then it is hard to tell. To get blue eyes both parents would need blue eyed recessive genes and the kid would have to receive both those recessive genes which is very rare. In this case blue eyes is not a sex-linked gene so its possible the the male and female with have a female with blue eyes. Most likely the child will have brown eyes though. This is because if the son does get the recessive from the mother, but gets the dominant from the father, the dominant will overpower the recessive and the son will just be another blue eye gene carrier and himself have brown eyes.
No. You cannot prove/disprove homozygosity. You can prove heterozygosity if there was a blue-eyed child, but as long as the couple keeps having brown-eyed children, it cannot be shown whether the man is homozygous.
Yes. Blue eyes are a recessive genetic trait, which means that a brown- or green-eyed person can still carry a gene for blue eyes. In this case, the blue-eyed gene is recessive, or subordinate, to the green- or brown-eyed gene. To be blue-eyed, an individual must have a recessive blue-eyed gene from both its mother and father.
NO. People with blue eyes do NOT have the brown eyed gene, if they did they themselves would have developed brown eyes instead of their blue as it is dominant. So two blue eyed parents can only pass the blue gene to their offspring.
Because of genes.A Little More InformationThe genes for brown eyes (BB) are dominant.The genes for blue eyes (bb) are recessive.The offspring receive one gene from each parent.In cases where they cross breed the offspring will have brown eyes and their genes will carry the (Bb) blue eye recessive trait.In the case where a brown eyed person with a recessive blue gene (Bb) cross breeds with a brown eyed person with no recessive (BB) all their offspring will be brown eyed, one in four has a chance of having the blue recessive trait. (BB) (BB) (BB) (Bb)In cases where a brown eyed person with a recessive blue gene (Bb) cross breeds with a blue eyed person (bb) two of four of their offspring will be brown eyed with a recessive blue (Bb) and two of four will be blue eyed (bb) (bb)Genetics state that when two people with the recessive trait of blue eyes cross breed they have a 1 in 4 chance of the offspring having blue eyes.(BB) (Bb) (Bb) (bb).As you can see from the above, any time there is a dominant in the mix, that is the colour that appears.
The iris.
Yes, it is possible. If one parent has blue eyes, they must carry two blue eye genes (bb) and can only pass on a blue eye gene to their offspring. If the other parent does not carry any blue eye genes, their child has a chance of inheriting a blue eye gene from the blue-eyed parent. This would result in the child having blue eyes.
Yes, it is possible for a brown-eyed individual and a green-eyed individual to have a child with blue eyes. Eye color inheritance involves the mixing of genetic factors, so a child can inherit blue eyes if both parents carry the recessive gene for blue eyes.
blue eye genes are recessive so a person must receive blue eye genes from both parents, meaning they don't have any other eye color gene to give their child except blue. Blue is recessive not only to brown, but also to green eyes so if there was one gene from either side then the person's eyes would not be blue.
Most of my grandfather's generation had blue eyes that had a dark center, then brown, then a bright blue circle (called central heterochromia). Two of my mother's generation had them and none in our generation.
It is likely that the red eye trait is dominant if a red eye and blue eye fly have only red eyed offspring. However, it is possible that the blue eyed trait is dominant and the blue eyed fly has the red eyed gene and passed it on to its offspring every time.
It is likely that the red eye trait is dominant if a red eye and blue eye fly have only red eyed offspring. However, it is possible that the blue eyed trait is dominant and the blue eyed fly has the red eyed gene and passed it on to its offspring every time.
There are two types of genes that brown eyed people can have. There is BB, and Bb. The blue eyed gene is bb. If two people are Bb, and they have a child, if the child receives the two bb from each person, then they will have blue eyes.
Blue eyed 'aux yeux bleus'
either a person with odd eyes or a multi colourful eyed person
Yes. The woman can be heterogeneous non-blue. That means she carries a blue eyed gene and a non-blue eyed gene. The blue eyed is normally recessive so he carries both blue eye genes and doesn't carry a non-blue gene.If two blue eyed parents have a child then the child will be blue eyed.
no