can two people with blue eyes have brown eyed child?

Answer 1

Thank God for Lothespiritalker. Not all inheritance is based on simple 'one allele from each parent' genetics. You can have more than one gene which plays a role in a characteristic, so to put it simply, if you have six genes which determine eye colour (just for example) and five say 'blue' one says 'brown'.... Even though brown is dominant you may need at least two brown alleles for this to make your eyes brown. You would then have blue eyes, but still carry genes for brown. Say you have a child with someone who has the same mix of genes for eye colour. It is possible your kid could inherit two brown alleles (getting one from each parent, the rest are blue from each parent). As brown is dominant, they will then have brown eyes, even though most of their alleles say 'blue', and both parents have blue eyes.

Answer 2

Yes,

Two blue-eyed parents can have a child with brown eyes
"Although not common, two blue-eyed parents can produce children with brown eyes," says Richard A. Sturm , a Principal Research Fellow at the Institute for Molecular Bioscience at the University of Queensland in Brisbane, Australia.
Eye color is a complex trait that depends on the state of several interacting genes. The gene that usually decides the issue (blue eyes or brown eyes) is the OCA2 gene on chromosome 15. But it comes in different strengths. A person with a weak form of the OCA2 gene will have blue eyes. Likewise a person with a strong form will have brown eyes.
The plot thickens, though, because an individual also has other eye-color genes that each has a say in the final eye-color outcome. For example, if one of these lesser genes is strong, it can make the weak form (blue) of OCA2 work much more effectively — almost like the strong form (brown). Then the eye color may be a light brown or muddy grey. In fact, the resulting color can be any shade of brown, hazel/green, or blue depending on the strengths of the interactions.

Answer 3

No, It seems only a few people that have answered have taken a science class. Blue eyes are a reccesive which means the parents do not carry a brown eye gene if they did they would have brown eyes because brown is dominant. So in short two brown eyed parents could have a blue eyed child but not the other way around

Answer 4

according to this biology book im looking at (human body, miles kelly publishing)then no, two adults with blue eyes will have a blue eyed child, it also says that if one parent has brown eyes and one blue eyes then the child will have brown, my father had blue eyes my mother brown ,my sister had blue eyes, also i have green eyes my partner has brown eyes my son has blue eyes, so fact of the matter is that if both parents have blue eyes there is a small chance the child will not

Answer 5

No, they can't. Blue eyed parents always have blue eyed offspring.
Curiously, a recent study seems to indicate that men with blue eyes tend to prefer women with blue eyes, while blue eyed women have no preference. An explanation put forward was that it enables to father to check his paternity claims, as a brown eyed child cannot be his own.
Brown eyed men and women had no specific preferences, which is consistent with the fact that men cannot use a simple rule to check their paternity.

Answer 6

in many cases, you're surely surprising.whilst eye shade is per some genes and is not unavoidably as decrease an dry as an uncomplicated Punnett sq. there are some uncomplicated regulations that underlie the equipment. As some others have reported blue eyes are per a homozygous recessive trait meaning they gained the gene (b) for blue eyes from the two mothers and dads (bb). on condition that brown is a dominant trait (B) if the guy had the gene they might even have brown eyes. merely because of the fact a relative had brown eyes does not advise you carry the gene. undergo in techniques we in easy terms get carry of an element of each and every mothers and dads code regardless of we don't inherit isn't secretly hidden someplace else in our genetic code. So in case you get carry of the blue from mom and the blue from dad, it truly is all you have there's no way a brown gene could be in the guy. they only had b's because of the fact in the event that they had a B their eyes could be brown besides. (This assumes that the eyes have been as you noted because it 'actual blue'. Now in case you desire to throw in the potential for a gene mutation or an particularly uncommon gene expression to happen (aka genetic reimbursement).....that would make it available for 2 blues to make a brown yet that's amazingly uncommon and it truly is even much less probable to happen with human beings whose mothers and dads have been in certainty 'actual blue' and not some off shade that has undertones of green or brown. in certainty certainly one of my classmates in college had somewhat a marvel whilst he got here upon that blue + blue virtually by no ability equals brown. whilst he noted as his mothers and dads on it his mom admitted to an extramarital affair of which she suspected he replaced right into a product (and it wasn't quite). DNA tests later proved this to be the case.

Answer 7

Yes, even though someone might have blue eyes he/she could still have the gene for brown eyes because the gene for brown eyes is dominant.

Answer 8

No they can't. The gene for blue eyes is recessive, so that means that you need to have both copies of the blue eye gene in order to have blue eyes. If you have one brown and one blue, you will have brown eyes, but can pass on the blue gene. If both parents have blue eyes, they can only contribute a gene for blue eyes (possibly green since that is recessive also and there are many shades of blue eyes).

Answer 9

no, blue eyes are a recessive gene which means you need two alleles in order to have that gene. Both parents do not have any alleles for brown eyes because they have blue eyes. If a one parent had brown eyes then it would be possible.

i would draw you a punnett square but it is too hard on the computer.

Answer 10

yes definatley.

if one parent carries the brown eyed gene then the baby wil have brown eyes