Genetics is quite confusing. Both of the parents must have had one blue allele (gene) and one brown one. This means that there is a 1/4 chance that the baby could have brown eyes. Blue eyes are dominant, so if the baby had one blue gene in his eyes he would have had blue eyes. Since the parents had one of each, the baby had a 1/4 chance of having two blue alleles, 2/4 chance of 1 blue and 1 brown alleles (which still means both blue eyes), or 1/4 chance of 2 brown alleles.
Sources:
School Genetics
maybe
Yes, they can.
I believe so, if both the parents have recessive alleles for blue eyes.
Yes, buy only if the parents are heterozygous for the trait and if the trait is dominant.
yes, only 2 blue eyed people can only have a blue eyed baby, this will not change ever! where as 2 brown eyed people can also have a blue eyed baby, but for 2 blue eyed people to have a brown eyed baby is impossible!
Yes. The woman can be heterogeneous non-blue. That means she carries a blue eyed gene and a non-blue eyed gene. The blue eyed is normally recessive so he carries both blue eye genes and doesn't carry a non-blue gene.If two blue eyed parents have a child then the child will be blue eyed.
It is impossible for a baby to have brown eyes if both of his parents have blue eyes since the brown eye gene is more dominant.
Yes!
Zero. Blue eyes come from a recessive gene (brown eyes come from a dominant gene). So two blue-eyed parents have only blue-eye genes in them. Therefore, they can pass only blue-eye genes to their baby.
yes it is and if they both have the blue eyed gene then the child should have blue eyes
It depends on the genes because some genes from the parents might not get passed on making the baby have brown eyes
no they cannot because if you have blue eyes, your alleles are bb, and so... bb and bb have no B, and therefore, with no dominant gene, there cannot be a brown eyed child.