In a group of students, 69% can roll their tongues, a trait determined by a dominant gene. The other 31% of the students were non-tongue rollers. Calculate the frequency of the R and r alleles for tongue rolling in this group of students.

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.