Tommy and his sister Maria have the same parents but they do not look alike. Which of the following factors best explains why they have this genetic variation within their family?

a- all cells come from pre-existing cells

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.

answerthe above statement is (false);