The fitness professional should be able to assist with isolated strengthening and should also be able to show clients how to perform these isolated techniques on their own while not under their direct supervision because it falls within the fitness professionals what

1) X- linked dominant

2) In the pedigree, the condition isinherited in every generation, which is a dominant trait. It is also dominant because one parent from the P generation in both Jack and Jill have the allele, showing that only the certain allele needs to be present, another trait for dominance. It can be inferred that it is X- linked because 3 of the 4 sons were afflicted compared to the 1 girl, leading us to believe that it would only take one afflicted X- linked allele to cause deafness.