No, the child can't have brown eye. Since both blue and green are recessive genes, if either parent carried the dominant gene for brown eyes, they too would have brown eyes. Human eye colour is very complex and not fully understood. The major problem is that there are so many genes which effect the colour of your eyes. Eye colour is in itself not easy to define some people have intermediate types such as grey and hazel. It has been popular to simplify the genetics to a single gene system in high school text books thanks to a scientific study in 1907 (1). However, we have since discovered that blue eyed parents can have brown eyed children!(2) A better, two gene system is explained here; http://www.athro.com/evo/gen/eyecols.html Also it is possible for a mutation to occur in a gene before it get passed on the child, effectivly it is possible (but unlikey) for a child to have any colour eye! Probably a decent rule of thumb is that a child will normally have eyes of the same shade or lighter than the darkest eyed parent.
1) G.C. Davenport and C.B. Davenport, Heredity of eye-color in man. Science 26 (1907), pp. 590-592
2)Richard A. Sturm, 1 and Tony N. Frudakis2,Eye colour: portals into pigmentation genes and ancestry,Trends in Genetics,Volume 20, Issue 8, 1 August 2004, Pages 327-332
Yes. Green and blue eyes are caused by the same gene. The genetics of eye color are more complex than previously thought. Almost any parent-child combination of eye colors can occur.
Yes. Green eyes and blue eyes are caused by the same gene.
a child with parents eyes that are blue and grey are more likely to get blue eyes. But it is not impossible that a child with those parents cant get brown eyes. My parents have brown and blue eyes and i got grey. It isn't impossible but quite rare.
Yes, if the parents carry the gene for green eyes as a recessive gene.
The green eye and the blue eye are the same gene, so is black and brown. The child's eyes would have to be green or blue because both parents onlt have blue genes. If both parents have brown eyes there is still a chance the child's eyes could come out blue, but only if one of the parents have a hidden blue gene. But is both parents have blue eyes this means all their genes are blue and the child will 100% have blue eyes.
Yes. Both parents could have the gene for green/blue eyes as a recessive gene.
yes, people with brown eyes can carry the blue eye gene, so two brown-or-green-eyed people who both carry the blue eye gene have a 25% chance chance of a blue eyed child (with each birth).
Yes it can come from earlier generations of the two families.
It is possible for a child with a brown-eyed parent and a green-eyed parent to have blue eyes if there is the trait for blue eyes in the child's genetics. Such as a grandparent with blue eyes.
any color
Well it depends also what color eye the mother's parents or any of the parents siblings have. Mother's Parents (both brown eyes) 5.1% blue eyes & 8.5% green eyes & 86.3% brown eyes Mother's Parents (green eyes & brown eyes) 7.8% blue eyes & 17.1& green eyes & 75% brown eyes Mother Parents (blue eyes & brown eyes) 14% blue eyes & 10.9% green eyes & 75% brown eyes Throwing siblings into the mix Mother's Parents (both brown eyes) Mother's Siblings (blue & green eyes) 8.0% blue eyes & 8.6% green eyes & 83.3% brown eyes Mother's Parents (both brown eyes) Mother's Siblings (blue eyes) 8.0% blue eyes & 8.6% green eyes & 83.3% brown eyes Mother's Parents (both brown eyes) Mother's Siblings (green eyes) 5.8% blue eyes & 10.8% green eyes & 83.3% brown eyes ...and so on
Most likely hazel or green. Blue eyes are a recessive gene, so it is very possible for two brown-eyed parents to have a blue-eyed child.
Yes, it is. This is because the genome for brown eyes is dominant compared to the genomes for green and blue eyes. If either of the parents were carrying the genome for brown eyes, then they themselves, would have brown eyes, not blue or green.