I think its D but I'm not sure
It form the contraction and relaxation of muscle
During mitosis, chromosomes move to the middle of the spindle during metaphase. Mitosis is a type of cell division in which the parent cell divides into two daughter cells with each daughter cell receiving the same number of chromosomes as the parent cell. Mitosis has the following phases: prophase, metaphase, anaphase and telophase.
Same base pairs !! Adenine;Guanine;Cytosine;Thymine !!
