Dimples? how many people have them?

Question

i looked this up on the net but i didn't find it anywhere

i have 1 dimple on my right side and i would like to know what is the ratio between people with dimples or without
and even better
how many people have only one dimple

i am told that it's a dominant trait
but only my aunt has dimples and she has 2
thank you

Answer 1

i have one on both sides

Answer 2

All the sources I have seen say that cheek dimples are controlled by a dominant allele, so it wouldn't be hidden in any individuals who have that allele. That has never made sense to me. My third son has prominent cheek dimples, and neither his father nor I have cheek dimples. Of course, a possible explanation is that the cheek dimple gene mutates often. I sure don't know if that's the case, but dimples like yours and my son's didn't come from a dominant allele from the parents.

A dimple in the chin, referred to as cleft chin, is also a dominant trait.

Answer 3

although the dimple allele may be dominent, that has no impact on it's prevelance (polydactyly is dominent...but most everyone in the world has 10 fingers than having more/less).

about the son w/ dimples and the parents without...well then means dimples are epistatic, and the dimple gene expression is dependent on another gene(s).

Answer 4

i don't have any when I smile.