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If a child has blonde hair and both of her parents have brown hair what does that tell you about the allele for blonde hair?
Wiki User
∙ 11y ago
It means the freckle trait is recessive. For example, if the allel for freckles is 'f', then the parents must have 'Ff' and both sent a 'f' to the offspring.
If one sent a 'F', then the child would have freckles.
OMG, gotta tell my science teacher about that, cuz we're learning about traits now and I'm shocked that I knew that!
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoIt tells you that even though the parents have brown hair, they have a recessive allele for blonde hair also. And even though brown is suppose to be visually dominant, it is not the case at all. Two brown heads can make a blonde or brown, and of course even red haired child. Another way to look at it may be the parents have the following alleles for hair color: (b,b) - (b,b) in which case the dominant allele is Blonde or Brown.
Robert Champ
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Your hair as a child blonde now mousy with dark blue eyes husband as child red hair now sandy brown with blue eyes what colour hair will baby have?
The child could have almost any hair color. It all depends on the past history of the family. Hair color is determined by 2 polygenes. One that is Blonde or Brown. The other is Red or not red. The father has a brown allele present, which is dominant to blond. Blond and red are both recessive hair colors, so the likelihood of the child having either is lower to begin with. Because of the father's brown allele there's a 50% chance of the child having darker hair, and depending on the allele that the mother possesses, there's either a 50% or a 0% chance of the child having red hair. So there could be a 50% chance of the child being blond, a 50% chance of the child being dark haired, and depending on the mother's allele a 50% chance of being a darker red haired individual. Hopefully you can make sense of that.
In order for a child to inherit a recessive trait both parents must be carriers of the recessive gene?
No. A recessive gene can be inherited from one parent, a dominant from another, or two alike dominants. (No such thing as two alike recessive, the gene with the furthest back dominant gene. Say a blonde little girl has a blonde hybrid mother and a brown hybrid father. She ended up getting brown recessive. Since both of her parents were hybrid, she only had a recessive hair color gene from one parent.
Can two brown eyes parents produce a blue eyes child?
I don't think two brown eyed parents produce a blue eyed child, but a brown eyed parent and a blue eyed parent can produce a child with blue eyes. Brown eyes are not always dominate.Two brown-eyed parents CAN produce a blue-eyed child if BOTH carry the recessive gene for blue eyes. Recessive means it can hide, but is still present and ready to be carried on to a future generation. Brown eyes ARE dominant. If you carry the gene for brown eyes, your eyes are brown. This does not mean you can't also carry the recessive gene for blue/green eyes.
What color hair will a child have if dad has brown hair with brown eyes and mom has blonde hair with blue eyes?
Um, you would not know unless you know if the hair gene is ressive or domiant in the mother of father. Um, you would not know unless you know if the hair gene is ressive or domiant in the mother of father. I have dark auburn hair and green eyes, does that help?
If both parents have brown hair and eyes can there baby have blond hair and blue eyes?
yes it is very possible. it all has to do with a gene pool but simply YES! -Actually, it is theoretically impossible. Blonde hair is a recessive trait, so both alleles must be the same, represented here as "hh". In order for the eyes to be brown, a dominant trait must be present, represened as "H" here. So it would either have to be Hh or HH. However, if both parents have blonde hair, there can only be two "hh"s in the gene pool. When the egg is fertilized, the only possible traits on the gametes are "h"s. There can be no dominant genes, since both parents have blonde hair and the brown hair gene would mask the recessive blonde gene. And the same goes for eyes, since blue is recessive in eye color and brown is dominant. The blue eyes are indicated with a "bb", and brown eyes as either "Bb" or "BB". Since both parents have blue eyes, the only possibility for each parent is "bb", and each parent giving on allele means one parent can give b or b, and the other parent can only give b or b. No matter how it goes, the end result will always be "bb". So to summarize, no. Two parents that display a recessive trait always produce an offspring showing that trait. Two brown-haired brown-eyed parents can, however, have a blonde-haired blue-eyed child, if both parents are heterozygous, meaning have "Hh" and "Bb". I hope this answer made sense to you, and that I explained it well and didn't ramble to an excessive degree.
If a child has blonde hair and both the parents have brown hair what does that tell you about the allele for blonde hair?
It tells you that even though the parents have brown hair, they have a recessive allele for blonde hair also. And even though brown is suppose to be visually dominant, it is not the case at all. Two brown heads can make a blonde or brown, and of course even red haired child. Another way to look at it may be the parents have the following alleles for hair color: (b,b) - (b,b) in which case the dominant allele is Blonde or Brown.
Is it possible for a black haired parent and a brown haired parent to have a child with blonde hair if all the grandparents of said child has either black brown or dark auburn hair?
You should be aware that the color of a child's hair can change as it grows up. When I was 7 my hair was silvery blond - by the age of 20 I was dark brown.On top of this the genetics for hair color are not simple (there is more than one gene involved). Look in the link I will place below. Yes, this is perfectly possible. Genes (sections of your DNA in each cell) determine, among other things, hair colour and are either 'recessive' or 'dominant''. the two different kinds of gene (dominant or recessive) are called alleles. The allele for brown or black hair is dominant over the blonde hair allele which means that when a child inherits a gene for hair colour from his parents then if one of the pair is a dominant gene - i.e. the 'brown hair gene' then that child will have brown hair whether or not they have a blonde hair gene as well. This means that it is more likely that a child has brown or black hair rather than blonde. Let's look at an example: 2 parents have 2 different allele Blonde/Brown (mother) and Blonde/Brown (father). They will therefore both have black or brown hair as they contain brown allele which mask the blonde allele in their chromosomes because the brown allele is dominant. Let's call the genes they have Bl(m) Br(m) Bl(f) Br(f) where Br=Brown, Bl = Blonde, m = mother and f = father. When they have a child then he will inherit one allele from his mother and one from his father. The possibilities of what he inherits are either 1. Bl(m) Bl(f) or 2. Bl(m) Br(f) or 3. Br(m) Bl(f) or 4. Br(m) Br(f) The only combination that produces a blonde child is the first one where both alleles are blonde. In the other three there exists a brown allele and, because brown alleles are dominant, the child will have brown hair irrespective of the fact that in two of the possibilities there is a blonde allele as well. Therefore there is only a one-in-four chance of parents with mixed genes having a blonde child, but it is still perfectly possible. Going back a generation to grandparents means that if all their grandparents had brown or black hair, then, again, the blonde allele could be lying dormant until the time when it is able to show up when it is matched with another blonde allele so that a brown allele cannot mask its effect. In my own family, my cousin's daughter has bright red hair (another recessive allele) although her parents and grandparents are brown haired. My father was red haired but I have brown. So to find the origin of the red-hair-allele we would have to look further back in out family history to find an ancestor of both my father and my cousin's parents. Asit happens our great great grandfather had red hair - and so he passed this on to the family, only to show up rarely in further generations where it was not masked by a more dominant allele like brown or black hair. Sad to say, many marriages have hit the rocks because of a child being suspiciously born with the same colour hair as the milkman or the husband's best friend... but if the couples had taken a lesson in elementary genetics, I am sure that the divorce courst would have been far less busy.
If a child has blond hair and both of her parents have brown hair what does that tell you about the allele for blond hair?
Both of the parents were heterozygous with the blonde hair allele, which is recessive. When there are two parents that are heterozygous, there is a 25% chance their offspring will get two of the recessive alleles. A punnett square can be useful when determining the different phenotypes and genotypes possible in offspring
What color eyes and hair will a baby have if mother has blonde hair hazel eyes father has dark brown hair brown eyes grandmother has blonde hair green eyes and grandfather has blonde hair hazel eyes?
Two alleles are responsible for determining both eye color and hair color. The allele for brown hair is dominant over the allele for blonde hair. The allele for brown eyes is dominant over the allele for blue eyes.If the organism presents with the dominant allele it can either be homozygous or heterozygous. But if it presents with either blonde hair and/or blue eyes it is homozygous for the recessivge alleles.Hazel, green and brown are all mutations of eye color but from the same allele that is responsible for brown eyes - so with the alleles there are really only to classes of eye color brown and blue - and if your not blue eyed your under brown eyes.Letting; H = brown hair and h = blonde hair and E = brown eyes and e = blue eyesMother Blonde = hh Hazel = EE/EeFather Brown = HH/Hh Brown = EE/EeI assume the grandparents are from the mothers side because 2 natural blondes should only have blonde children naturally.1/4 chance of baby being blonde 1/12 will have blue eyesAnother answerIt's very possible that a child could have red hair also with those genes. I have many family members that have a red headed child.
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.
Is it possible for two parents with brown hair to have an offspring with blonde hair?
If two blonde haired people have a child the child will be blonde as everybody has two hair genes (one from each parent) and you pass one of your genes to your child, to be blonde you have to have two blonde haired genes and as you can only pass blonde genes to your child they will certainly be blonde.Source(s):GCSE science lessons Hi I am sorry to rain on your party but i believe you are incorrect. The reason why is because you can carry a trait but if you are an owner of trait then you have that trait plus others. For example my aunt has blonde hair and her hubby has blonde hair that went to dirty blonde to brown naturally. However, they have a red-head. How is this possible? Doesn't heredity have rules? I am so confussed.
If both parents O positive can child be A positive?
If both parents are O+ve, it means they have i allele, which is a recessive allele. For a person to have A+ve blood group, IA allele should be present. But in case of both parents being O+ve, there is no possibility that either of the parents carry the IA allele since it is a dominant allele. Thus the child would have to be O+ve.
Difference between dominant and recessive genes?
dominant genes are more likely to be passed down to a child than recessive genes. Here's an example: A woman has black hair and blue eyes. Her husband has blonde hair and brown eyes. Their child will most likely have brown eyes and black hair, because black hair and brown eyes are dominant genes, while blonde hair and blue eyes are recessive. It is, of course, still possible for the child to be blonde and blue-eyed, only less likely. However, if the father had blue eyes too, it would be most likely that the child would have blue eyes. Grandparents are also a factor: say that both parents have blue eyes, but one or more of the child's grandparents (or anyone down the genetic line, actually) has brown eyes. It is therefore also possible for the child to have brown eyes. hope it helped
If your mother was born with blonde hair and you were born with blonde hair but your boyfriends hair is brown and his parents hair is brown then what color hair will your baby have?
its kind of gentic so you child should have in the middle like a really dirty blond
Your hair as a child blonde now mousy with dark blue eyes husband as child red hair now sandy brown with blue eyes what colour hair will baby have?
The child could have almost any hair color. It all depends on the past history of the family. Hair color is determined by 2 polygenes. One that is Blonde or Brown. The other is Red or not red. The father has a brown allele present, which is dominant to blond. Blond and red are both recessive hair colors, so the likelihood of the child having either is lower to begin with. Because of the father's brown allele there's a 50% chance of the child having darker hair, and depending on the allele that the mother possesses, there's either a 50% or a 0% chance of the child having red hair. So there could be a 50% chance of the child being blond, a 50% chance of the child being dark haired, and depending on the mother's allele a 50% chance of being a darker red haired individual. Hopefully you can make sense of that.
Can parents with O blood and B- blood produce a child with A blood?
No - this is not possible. The child must have one parent with an A allele in order to have type A blood. Neither of these parents have an A allele - so this is not possible.
What if the mom has brown hair and the dad has blonde hair then what color hair will baby have?
It possibley might have blond or brown because i have blond hair and my brother has brown hair. Ginger hair. My friend has a blonde mom and a Brown hair dad. And she is orange
