Pale implies a faintness or absence of color, which may be natural when applied to things, the pale blue of a violet, but when used to refer to the human face usually means an unnatural and often temporary absence of color, as arising from sickness or sudden emotion: pale cheeks.
This condition is inherited in an autosomal dominant pattern, which means one copy of the altered gene in each cell is sufficient to cause the disorder. In most cases, an affected person has one parent with the condition.
A single, abnormal gene on one of the first 22 nonsex chromosomes from either parent can cause an autosomal disorder. Dominant inheritance means an abnormal gene from one parent can cause disease, even though the matching gene from the other parent is normal. The abnormal gene dominates.utosomal dominant is one of several ways that a trait or disorder can be passed down through families. If a disease is autosomal dominant, it means you only need to get the abnormal gene from one parent in order for you to inherit the disease.