The results of a gel electrophoresis run are shown above. Which of these does NOT explain the differential pattern of the bands on the gel?
a) All three DNA samples have different charges.
b) All three DNA samples are from three different individuals.
c) All three DNA samples were cut by different restriction enzymes.
d) All three samples are from the same individual but were isolated from different chromosomes

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.