2007-03-04 06:27:09 · 11 answers · asked by Marie 7 in Pregnancy & Parenting ➔ Other - Pregnancy & Parenting
My husband and his first wife had a daughter who has brown eyes and I am wondering if there may have been something his first wife did not tell him? I does not matter except the girl is asking her dad about his medical history which may not be her genetic background. My husband has accepted her as his own, but he has often questioned whether he is her biological father. She is 17 and wants to know about the family's history of diabetes and ovarian cancer.
2007-03-04 06:35:13 · update #1
Everyone in his family is blue eyed and everyone in her family has blue or green eyes.
2007-03-04 06:36:37 · update #2
There are ways that it can happen. Mostly do to chemical and environmental factors during the conception time.
I encourage you to have her talk to a doctor or take her down to the local university to talk to medical students so she can better educate herself.
Try to not turn it into a personal situation, meaning, try to leave the mom out of it. We all know that some women do cheat on their husbands creating kids from other parents but blaming it on someone else, but the girl is 17 now, this guy has been her Dad for all of her life, you don't want to force her to change that. Its somthing that is best discovered on her own for the age that she is. That way her dad (biological or not) doesn't lose the love of his daughter and her Mother gets the blame if anything should prove otherwise.
2007-03-04 06:48:48 · answer #1 · answered by Deu 5 · 2⤊ 0⤋
No. Blue eyes is a recessive gene meaning you have to carry it on both genes to have them. If 2 people with blue eyes reproduce the only eye color gene they have to pass on is the blue eyed gene, so the children will all have blue eyes.
Now, 2 brown eyed people can have a blue eyed child, if they both carry the blue eyed gene and they both pass it on. If both parents are carriers for the blue eyed geen, they have a 25% chance of having a blue eyed child, and a 50% chance of having a child who carries the gene.
* There have been a few cases that have been studied where something went worng/malfunctioned with the genes and a different color was produced, but it's very rare, and is an exception to the rule.
2007-03-04 06:29:28 · answer #2 · answered by Melissa 7 · 2⤊ 0⤋
Yes. Its unlikely but still possible. Do any of the grandparents or even great grandparents have brown eyes? This is what will make it more likely. Here is some info I found on http://www.eyecarecontacts.com/eyecolor.html
Many of us learned in school the so-called simple Mendelian, or "two gene" genetic model to predict eye color. This model promoted the notion that blue eye color is a simple recessive trait. Based on the color of the mother and father's eyes, little Johnny or little Jill would have blue or brown eyes. This model has repeatedly been shown to be wrong, yet is still presented as an explanation for eye color. As we learned more about genetics and cell chemistry, it was determined that melanin, a brown pigment, is controlled by the brown-blue gene on chromosome 15 and the green-blue gene on chromosome 19. The new and improved genetic model still doesn't work all that perfectly and, in fact, science has discovered at least one more color-determining gene, another brown-type also located on chromosome 15.
2007-03-04 06:30:38 · answer #3 · answered by cavwife 3 · 0⤊ 1⤋
yes if either of the grandparents have brown eyes, the trait/gene could be passed down from them. As a matter of fact I met a couple last night at a party that have a six month old who fits this very scenario. The parents both have blue and the child has brown, which she got from the grandmother on the mothers side who also has brown eyes.
2007-03-04 06:37:49 · answer #4 · answered by Billy FZ1 5 · 0⤊ 1⤋
The two answers given are wrong....blue eyes is caused by a recessive gene....brown is dominant....regardless of what you currently have....i.e. it's always a 1 out of 4 possibility to have BLUE EYES and a 3 out of 4 likelihood the child will have BROWN EYES.
2007-03-04 06:32:38 · answer #5 · answered by superbird 4 · 1⤊ 0⤋
No, I am sad to say in your situation, that blue eyed people can only have blue eyed children.
The gene for brown eyes is dominant. Therefore everyone with brown eyes either has two brown eye genes, or one brown, one blue.
The gene for blue eyes is recessive. People with blue eyes can only have two blue eye genes. Thus, they can only pass on blue eye genes to their children.
2007-03-04 07:38:32 · answer #6 · answered by Laura H 5 · 2⤊ 0⤋
Yes. It all has to do with your genetics... not just the parents, but the whole genetic pool. For example, my dad has brown eyes, mom's are blue and mine are green. My brother had blue eyes and the other one had greenish blue. None of us had brown eyes which would normally be the most dominant gene.
2007-03-04 06:31:23 · answer #7 · answered by Shady B 1 · 0⤊ 2⤋
Melissa's answer is right. There may be some weird exceptions, but that is the rule: blue eyed parents have blue eyed children.
2007-03-04 06:36:16 · answer #8 · answered by Mr. Denny 3 · 3⤊ 0⤋
Yes it's possible. You don't get your genes from your parents only. It can be passed down from generations ago. 2 white people can have a dark skinned baby if it's in their genes. My sis and her dh both have blue eyes. Their son has brown, he got it from his paternal grandmother. There may be "rules" as to how the genes get passed, but the rules are not always followed.
2007-03-04 07:56:34 · answer #9 · answered by elizabeth32132 2 · 1⤊ 2⤋
yes it can happen...just like two really light people can have a really dark baby. if there is a gene somewhere down the line it can happen. my cousin has different color eyes and her mother and Father has dark brown eyes
2007-03-04 06:33:16 · answer #10 · answered by nikka 2 · 0⤊ 1⤋