| __ | 1. | Autosomes | | A. | a chromosome that isn't involved in sex determination |
| __ | 2. | Centromere | | B. | (1) The constricted region joining the two sister chromatids |
| __ | 3. | Chromatid | | C. | Each contains a double helix of DNA. |
| __ | 4. | Chromatin | | D. | unwound; in non-dividing cells (interphase) |
| __ | 5. | Chromosome | | E. | tightly packaged; in dividing cells |
| __ | 6. | Diploid | | F. | a cell that contains two haploid sets of chromosomes |
| __ | 7. | Genes | | G. | a cell that contains one set of chromosomes |
| __ | 8. | Haploid | | H. | made up of DNA, act as instructions to make molecules |
| __ | 9. | Histone | | I. | protein that helps DNA to coil around it |
| __ | 10. | Homologous Chromosomes | | J. | two chromosomes, one of paternal origin, maternal origin |