My friend has a child who looks NOTHING like him. The child also has a clef chin and neither my friend nor the childs mother has one. Im not sure but I thought that in order for a child to have this trait one of the parents had to have it.
2006-12-30 09:29:58 · 4 answers · asked by LW 2 in Arts & Humanities ➔ Genealogy
My daughter has a little clef chin and neither my husband nor I do (and yes, he is her father, and yes, I'm sure!). My guess would be that it is recessive and both parents could have the trait without expression, but I don't know that. I just know I have a child with a clef chin and 2 parents without. Google might turn something up. My daughter looked little like her dad until she turned about 6 or 7, now she looks a little more like him than me. Kids look like all combinations of their parents, and more like them as they get older.
OK, I was curious. I found a site that worked out the punnett square: there is a 3:16 chance that parents without expressed cleft chins will have a child with one!
2006-12-30 09:52:35 · answer #1 · answered by Angry Daisy 4 · 0⤊ 0⤋
A couple with brown eyes can have a blue-eyed child due to regressive genes. There is no reason that this couple's child should not have a cleft chin. Look at his other family members - grandparents, aunts, uncles, even great-grandparents. Chances are this trait shows up somewhere in the family of at least one parent. If it shows up in both, it's an even better chance that the child could have inherited it.
My son has O-negative blood. The nearest relative with O-negative was his father's sister. She apparently got it from a great-grandparent because O-positive blood is mine and my hubby's and his parents. My mom was A-positive and my dad O-positive. So things do happen when least expected.
2006-12-30 09:52:52 · answer #2 · answered by momkat 2 · 0⤊ 0⤋
It would depend. Does the baby have any older generations of people with clef chins. A grandfather or great uncle? If so a gene could could of skipped your friend's generation as genes do sometimes. There could also be the open question if the mother was faithful.
2006-12-30 11:01:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Not only is it possible that some long ago ancestor had one but it could be as simple as a gene mutation.
2006-12-30 16:19:22 · answer #4 · answered by Judith 6 · 0⤊ 0⤋