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.
But aa would make the a trait show up. As long as a pair of alleles has a dominant allele (A), the trait that the dominant allele represents would show up. Autosomal dominant is a trait that results when the allele combination is AA or Aa. Autosomal recessive is a trait that results when the combination is aa.For example, albinism is an autosomal recessive trait. That means if a person has two recessive alleles (aa), then that person WILL be an albino.ut aa would make the a trait show up. As long as a pair of alleles has a dominant allele (A), the trait that the dominant allele represents would show up. Autosomal dominant is a trait that results when the allele combination is AA or Aa. Autosomal recessive is a trait that results when the combination is aa.