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Brown eye gene = B
Blue eye gene = b
Each person has two copies of the eye color gene in their genome, one inherited from each parent. Now if both parents only carry the gene for brown eyes, BB and BB, then their child will receive one B from each parent, ending up as BB. The same works for blue eyes, if that's the only gene both parents carry, bb and bb. Each parents gives on b to the child, who ends up as bb.
If you have one parent who only has the gene for brown eyes, BB, and one parent who only has the gene for blue eyes, bb, then all the children will have brown eyes. Example: One parent gives a B, the other gives a b. Bb = brown eyes. Here's why: When you have two alleles (coding sequences) from genes that are at odds with each other, one version will override the the other. When dealing with eye color, B always dominates b. But these children now carry the b gene in them, and could pass it down to their own children. Some of them, depending on the other parent, could end up with blue eyes.
If one parent is Bb, and the other is bb, then each time they have a child, there is a 50% chance it will have blue eyes. Example: First parent is Bb, second parent is bb, then their children will end up as either Bb, bb, Bb, bb. If both parents carry the genes for brown eyes and blue eyes, then each time they have a child, there is a 25% chance it will have blue eyes. Example: First parent is Bb, second parent is Bb, then their children will end up as either BB, Bb, Bb, bb.
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoask your mom ! it will help. (a little)
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What is inherited trait?
Something That You Inherited From Your Parents
Are blue eyes more dominant than brown eyes?
i have blue eyes & my pupils are big
Why can a person with brown eyes carry blue eye alleles but a person with blue eyes cannot have a brown eye allele in their genotype?
Because the brown eyes allele is the dominant one.
What if your friend has blue eyes her genes contain one allele for blue eyes and one allele for brown eyes which allele is recessive how do you know?
The brown allele is recessive. Think: Blue = B, and brown = b Your friend is Bb, or heterozygous for the gene. In heterozygotes, the expressed phenotype is the dominant gene, which in this case, apparently, is blue. Thus, because your friend does not have brown eyes, the brown allele must be recessive.
What color will your daughter's eyes be if both you and her father have brown eyes?
Brown is the dominant gene. Therefore, it MUST be brown, right? Im half black and half white with brown eyes my husband is Mexican with brown eyes but our daughter has blue eyes, this will only happen if one grandparent on eachside has blue eyes!!
Why is it wrong that a daughter has a higher chance of inheriting mother's characteristics and a son' the father's?
Gender is not inherited, so traits are not inherited according to gender. (I am a male. My dad has blue eyes and my mom brown. My sister has blue eyes and I have brown.)
Is it possible for a person with brown-eyed parents and no recessive blue eye gene to have a blue-eyed child if their partner has blue eyes?
Yes, the child probably inherited the blue eyes from the person with blue eyes.
What is inherited trait?
Something That You Inherited From Your Parents
What is the 2 meanings for inherited?
You can inherit gene traits like brown hair or blue eyes, or there is inheritence, from wills.
Why is some of your eyes brown?
They are inherited by parents.
What do blue eyes lack?
Brown.... blue eyes lack brown....
Is brown eyes dominate or is blue?
Brown eyes are dominant.
Which are hotter brown eyes or blue eyes?
Definitely brown eyes on a guy and blue eyes on a girl. But its your opinion.
What color are Terry Fox's eyes?
his eyes are blue
What if a gene skips a child can that gene be given to there kid?
A person can only pass on genes that he/she has inherited from his/her parents. You may be talking about a situation in which a recessive gene is not expressed in a child because it inherited a dominant allele as well, and is heterozygous for that trait. If that child then has his/her own child, the recessive trait could be expressed in the children of that child, if the other parent also carries the recessive allele.Example: One parent has brown eyes, the other has blue eyes. Their child inherited a brown eye allele and a blue eye allele, and has brown eyes, but is heterozygous. This child then has a child with another brown-eyed person, and their offspring has blue eyes, even though both parents have brown eyes. It just so happens that both of these parents are heterozygous for brown eyes, so they both carry the recessive blue-eyed allele which they each passed on to their blue-eyed offspring. So, this makes it look like the blue-eyed allele skipped a generation, but in reality it was always there, but not always expressed.
Did Native Americans have blue eyes?
Brown eyes.
Brown eyes are dominant Cross a homozygous brown with a recessive blue What color eyes will the offspring have?
all brown the chances of brown eyes both parents have to have blueeyes for blue eyes to become dominant but its still possible no matter what for blue or brown
