Crohnâs disease is usually treated with some medications but if complications occur, surgery may be an option to remove the most affected part of the colon or to close a fistula. Ulcerative colitis: Itâs an inflammatory disease that affects the large intestine and rectum only.
If the phenotype associated with a given version of a gene is observed when an individual has only one copy, the allele is said to be autosomal dominant. The phenotype will be observed whether the individual has one copy of the allele (is heterozygous) or has two copies of the allele (is homozygous).f the phenotype associated with a given version of a gene is observed only when an individual has two copies, the allele is said to be autosomal recessive. The phenotype will be observed only when the individual is homozygous for the allele concerned.
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.