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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 |