yes. without a doubt. the trait could come from anyone in your family who has had a widows peak.
this includes grandparents and great grandparents.
The only way that would be possible is if there was a mutation during the formation of one or both of the parents' gametes.
What percentage of the possible types of offspring had the same phenotype as the parents
O- would be the only possible blood type for the child.
If both parents are A and AB, there is no way to have a child with Othe only possible blood types are :AB,A,B
Only B and O are possible
No it is most likely but it is not guaranteed. Both of my parents don't have widows peaks yet i have a widows peak.
A widows peak is controlled by one gene that is passed on from both parents. In this case lets say your parents both have a dominant allele for a widows peak(A) so in that case, you would have a 100% chance of being born with one.
Yes, because they can carry the trait from their parents. You would need to look at the grandparents on both sides. If one grandparent on the maternal and one on paternal side had a widows peak then the parents could both be a carrier to the widow peak gene (wW), meaning they could produce a child with a widows peak. However, if both the maternal and or paternal grandparents lack a widows peak then it is impossible for a grandchild to have a widows peak because both parents would be recessive ww (straight hairline). When attempting to figure out genetics it is best to observe three generations for family genetic traits. However, when in doubt you should confirm with a paternity test.
The only way that would be possible is if there was a mutation during the formation of one or both of the parents' gametes.
To have type O then you have two copies of the O gene (OO)This is possible if both parents have (AO or OA) genes, (the A bit dominates)the ratio of possible offspring will be 1-AA, 1-OO, 2-AO from AO parents. However, if either parent is AA (or both parents are AA) then OO is not possible.
No.
No, it is not possible for the baby to have an A group with both parents being O. This is because the parents would have the genotype OO,thus on recombination, the only possible outcome is again an O.
predators
Yes, it is quite possible. It does require both parents to have AO(+-) genotypes, which is somewhat rare, however.
What percentage of the possible types of offspring had the same phenotype as the parents
its likely but might not the chances of the shild not having a widows peak are 1/16 you can better know these odds if you know the parents genotype or genetic makeup.
No, it is not possible.