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The chromosome must be duplicated before mitosis.
Mitosis is where a parent cell divides and produces 2 genetically indentical daughters cells. This process first requires the parent call to duplicate all of its genetic material. This ensures that the daughters cells are genetically identical to the parent cell and also the other daughter cell.
This is important because mitosis is used in many cases in living things such as growth, repair, and more. This ensures us for example not suddenly changed to another organism or another characteristic.
Answer: B) G2
Explanation: G1) first gap phase; the cell grows larger and organelles are copied
S) synthesis phase; the cell synthesizes a complete copy of the DNA in its nucleus
G2) second gap phase; the cell grows more, makes proteins and organelles, and begins to reorganize its contents in preparation for mitosis
M) mitosis phase; the cell divides its previously-copied DNA and cytoplasm to make two new, identical daughter cells.
So DNA replicates in S phase but then it moves to G2
"A" bonds with "T", and "G" bonds with "C" (A-T) (G-C)
