D2.1

3. The longest phase of the cell cycle where the cell grows and DNA replicates.
4. The process of DNA condensing into tight chromosomes during prophase.
6. Nuclear division that produces two genetically identical daughter nuclei.
8. A cell containing two full sets of chromosomes (one from each parent).
9. The division of the cytoplasm to form two separate daughter cells.
11. A reduction division of a diploid nucleus to form four haploid nuclei.
12. The stage where chromosomes condense and the nuclear envelope breaks down.
13. The stage where chromosomes line up along the equator of the cell.
14. The failure of chromosomes to separate properly during meiosis.
16. Chromosomes with the same sequence of genes but potentially different alleles.
17. The independent alignment of homologous pairs at the equator in Metaphase I.
18. The final stage where two new nuclear membranes form around chromosomes.

1. The stage where sister chromatids or homologous pairs are pulled apart.
2. A cell containing only one set of chromosomes (e.g., gametes).
5. The region of a chromosome where two sister chromatids are joined.
7. Microtubules that attach to centromeres and move chromosomes.
9. One of the two identical parts of a duplicated chromosome.
10. A pair of homologous chromosomes held together during Meiosis I.
15. The exchange of genetic material between non-sister chromatids in Prophase I.