Marfan syndrome can be caused by a substitution mutation in the FBN1 gene. This mutation is likely a harmful mutation.
From the DNA sequence of unaffected individual and
individual with Marfan syndrome we can see that C is substituted with G. Each parent with the Marfan syndrome has a 50% risk of passing the genetic defect on to offspring because of its autosomal dominant nature, so the mutation is harmful.
Answer:
(B)
Explanation:
It was so important to develop its six aims for health care in order so that the health care organizations would have a better idea of what they needed to improve. These six aims, which are safety, effectiveness, equity, timeliness, patient-centeredness, and efficiency, are all intended to provide a set of fundamentals that need to be addressed in order to improve the health care services that are being provided.
I'm not sure if I will answer the question you asked, as I many have interpreted it incorrectly. In natural selection, there must be variance in the gene pool, the total frequency of alleles in a population. Now, one of the organisms may have a gene that somehow helps them survive from the selective force much better compared to the others. If this does happen, over time the gene pool will narrow down to become just the genes of that organism that survived better in the first place because the rest would be taken care of by the selective force. So, the alleles and trait come from the first organisms that had the advantage over the others of its species.
