What eyes do blue and brown make?
The only way to present blue eyes is to inherit two copies of the blue-eyed gene. However, brown-eyed parents can pass a recessive blue-eyed gene. Therefore, two brown-eyed partners can birth a blue-eyed baby.
Are blue eyes or brown eyes dominant?
Eye color was traditionally described as a single gene trait, with brown eyes being dominant over blue eyes. Today, scientists have discovered that at least eight genes influence the final color of eyes. The genes control the amount of melanin inside specialized cells of the iris.
Can a green eyed and brown eyed parent have a blue eyed baby?
A lot. A brown eyed dad and a green eyed mom can have a blue eyed child because there are at least two eye color genes. Because of this, it is possible for both green and brown eyed parents to be carriers for blue eyes. And as carriers, they each can pass down blue eye genes to their children.
What will be the genotype of a brown eyed woman who has a blue eyed child?
If B is the allele for brown eyes and b is blue, the genotype of the blue-eyed man is bb. His wife must be a Bb heterozygote–she must have a B allele (she has brown eyes), but she must also have inherited a b allele from her blue-eyed mother (whose genotype was bb)….
| R | B | |
|---|---|---|
| W | RW (red) | BW (blue) |
Can blue and brown eyes make blue?
If both of you have brown eyes, then there is generally a 25% chance that the baby will have blue eyes if both of you carry the recessive blue-eye gene. But if only one of you has a recessive blue-eye gene, and the other has two brown, dominant genes, then there is a less than 1% chance of the baby having blue eyes.
Are blue eyes brown recessive?
The brown eye form of the eye color gene (or allele) is dominant, whereas the blue eye allele is recessive. If both parents have brown eyes yet carry the allele for blue eyes, a quarter of the children will have blue eyes, and three quarters will have brown eyes.
Can blue eyes skip a generation?
For example, red hair and blue eyes can both skip a generation because they are recessive. A cleft chin can skip generations because of something called incomplete dominance. We’ve dealt with both of these pretty completely in the past so I won’t go over them here.
Are blue eyes recessive genes?
Eye color is not an example of a simple genetic trait, and blue eyes are not determined by a recessive allele at one gene. Instead, eye color is determined by variation at several different genes and the interactions between them, and this makes it possible for two blue-eyed parents to have brown-eyed children.
Can a brown eyed man and a brown eyed woman have a blue eyed baby?
Can a blue eyed male and a brown eyed female have a blue eyed baby?
So, to try and clarify things, let’s think about this situation. Someone with brown eyes may be carrying one blue allele and one brown allele, so a brown-eyed mother and a blue-eyed father could give birth to a blue-eyed child.