Which phase of cell division is shown in this visual?

a) metaphase of mitosis.

b) telophase of mitosis.

c) metaphase 1 of meiosis.

d) prophase 1 of meiosis.

The right answer is A) Metaphase of mitosis.

During one of the phases of mitosis (the metaphase), the chromosomes (in the form of a cross) are positioned in the center of the cell thanks to the mitotic spindle (the white lines), so that in the anaphase there is a disjunction of the centromeres (the center of the chromosomes).

it has one origin of replication, but it proceeds in two directions - d)

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme