3.The centromere is the place where the chromatids are __ 4.The stages making a cell ready for cell division is called the __ . 5. The cell cycle has four stages including __ __ __ and __ 6.The longest stage of the cell cycle is __ because it involves __ 7.The S stage is necessary because this is where the cell __ 8. Cell division is described by the name __ and is divided into __ phases. 9.Cells go through mitosis to __ and to replace cells that have __ ,have been __ or __ 10. The first phase of mitosis is __ and involves the __ of chromosomes, the beginning of the breakdown of the __ , appearance of the __ with __ that will become the __ 11. The next phase of mitosis is called __ , and involves the complete breakdown of the __ with the complete formation of the __ and the chromosomes moving 12. The next phase of mitosis is __ and starts when the chromosomes are aligned along the center of the cell or the __ 13. The spindle is attached to the chromosomes at a point called the __

3. The centromere is the place where the chromatids are **joined together**.<br /><br />4. The stages making a cell ready for cell division is called the **interphase**.<br /><br />5. The cell cycle has four stages including **G1**, **S**, **G2**, and **M**.<br /><br />6. The longest stage of the cell cycle is **interphase** because it involves **cell growth, DNA replication, and preparation for cell division.** (Interphase encompasses G1, S, and G2)<br /><br />7. The S stage is necessary because this is where the cell **replicates its DNA**.<br /><br />8. Cell division is described by the name **mitosis** and is divided into **four** phases. (Sometimes prometaphase is included as a fifth, between prophase and metaphase).<br /><br />9. Cells go through mitosis to **grow** and to replace cells that have **died**, have been **damaged**, or **worn out**.<br /><br />10. The first phase of mitosis is **prophase** and involves the **condensation/thickening** of chromosomes, the beginning of the breakdown of the **nuclear envelope/membrane**, appearance of the **spindle apparatus** with **microtubules** that will become the **spindle fibers**.<br /><br />11. The next phase of mitosis is called **metaphase**, and involves the complete breakdown of the **nuclear envelope/membrane** with the complete formation of the **spindle apparatus** and the chromosomes moving **to the metaphase plate (equator of the cell).**<br /><br />12. The next phase of mitosis is **anaphase** and starts when the chromosomes are aligned along the center of the cell or the **metaphase plate**.<br /><br />13. The spindle is attached to the chromosomes at a point called the **centromere**.<br />