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Cell Division Unit
Terms related to mitosis and meiosis - Chapters 10 and 11-4
| Term | Definition |
|---|---|
| Chromatid | 1/2 of a duplicated chromosome |
| Centromere | Center of the chromosome |
| Spindle | Attaches and separates sister chromatids |
| Mitosis | Cell Division |
| Interphase | Includes G1, S and G2 phases |
| Cell cycle | Cell grows and divides into daughter cells |
| Homologous chromosomes | Corresponding/paired chromosomes, one from each parent |
| Zygote | Fertilized egg |
| Haploid | Half the chromosomes |
| Gamete | Sperm or egg cell |
| Meiosis | Produces 4 different haploid gametes |
| Mitosis | Produces 2 identical daughter cells |
| Fertilization | When egg meets sperm |
| Tetrad | Four chromatids formed during prophase I |
| Crossing Over | Exchange of alleles |
| Autosomes | Chromosomes #1-22, determine traits |