Cytoskeletal elements play important roles in cell division. The mitotic spindle apparatus is made of and pulls sister chromatids apart, and the contractile ring which forms the cleavage furrow is composed of and is required for the separation of daughter cells at the end of animal cell cytokinesis.

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers