fibrillin-1 mutation associated with Marfan or Marfan-like Syndromes. On Chromosome 15. There are thousands of mutations.
Paul Shenton
Not a phenotype. Extremely useless.
This is not a phenotype. This is a genotype. Thus, everyone with the mutation will state that they have the mutation and everyone without the mutation will state that they do not have the mutation. Having the mutation thus correlates with having the mutation and not having the mutation correlates with not having the mutation. This will provide the most useless bit of genetic information ever.