Cultural i think it sounds right
Answer:
The most likely cause of this disease is that siblings have a variable expression of this disease.
Explanation:
Neurofibromatosis 1 is an autosomal dominant disorder, even though it is a very rare disease to occur. This dominant nature causes this disease to be expressed even in people who have heterozygous alleles for it, which makes it easier for siblings to have this disorder, since only those who are hom0zygous recessive would not present it. However, the expressiveness of the disease may vary between siblings, as is the case shown above, where although the two siblings have the same disease, they present it in different ways.
D. Pullman car was a train car. Standard time was used by railroads so trains would not crash into each other. Standard gauge was the size of
Tracks so any railroad could use it.
The air is a major part of it and it blows it around
