Julia had a sibling who died because of a genetic disease as an infant. before having children, she and her husband tobias get genetic testing and counseling. they are unlucky. for the gaa gene, julia has one normal allele and one totally non-functional allele. tobias has one normal allele and one totally non-functional allele. if any of their offspring test positive for pompe disease, when are symptoms likely to develop (remember, both parents have one non-functioning allele, 0%gaa)?

I believe its Before the age of nine monits. I could be wrong tho

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.