Question

put the steps of the cell cycle in order.
1 the cell grows and replicates its dna.
2 the chromosomes line up in the middle of the cell; the spindle fibers attach to their centromeres.
3 the spindle fibers retract, pulling the chromosomes apart.
4 the nucleus disintegrates and the dna condenses into chromosome; the centrioles migrate to opposite ends of the cell.
5 the chromosomes loosen back into dna; the nuclear membrane reforms; the cleavage furrow/cell plates form.
6 cytokinesis; there are now two identical daughter cells

Explanation:

Step1: Identify Interphase (Growth/DNA Replication)

The first step in the cell cycle is interphase, where the cell grows and replicates its DNA. So this is step 1.

Step2: Identify Prophase (Nucleus Disintegrates, Chromosome Condensation)

Next is prophase: the nucleus disintegrates, DNA condenses into chromosomes, and centrioles migrate. This is step 4.

Step3: Identify Metaphase (Chromosomes Line Up, Spindle Attachment)

Then metaphase: chromosomes line up in the middle, spindle fibers attach. This is step 2.

Step4: Identify Anaphase (Spindle Retracts, Chromosomes Pulled Apart)

Anaphase: spindle fibers retract, pulling chromosomes apart. This is step 3.

Step5: Identify Telophase (Chromosomes Loosen, Nuclear Membrane Reforms)

Telophase: chromosomes loosen back to DNA, nuclear membrane reforms, cleavage furrow/cell plate forms. This is step 5.

Step6: Identify Cytokinesis (Two Daughter Cells)

Finally, cytokinesis: two identical daughter cells form. This is step 6.

Answer:

1. The cell grows and replicates its DNA.
2. The nucleus disintegrates and the DNA condenses into chromosome; the centrioles migrate to opposite ends of the cell.
3. The chromosomes line up in the middle of the cell; the spindle fibers attach to their centromeres.
4. The spindle fibers retract, pulling the chromosomes apart.
5. The chromosomes loosen back into DNA; the nuclear membrane reforms; the cleavage furrow/cell plates form.
6. Cytokinesis; there are now two identical daughter cells