Honors Bio Ch. 8 Cell Reproduction Prokaryotes - Binary fission Eukaryotes DNA condensing/packing Cell Cycle Interphase – normal cell life M phase – cell divides Mitosis Cytokinesis DNA Replication Mitosis Cytokinesis Cell Cycle Controls Cancer – uncontrolled cell division benign malignant metastatic Sexual Reproduction: Meiosis Homologous pairs Diploid Haploid Meiosis – reduces chromosomes by ½ Synapsis Homologous pairs meet Crossing-over Independent Assortment Meiosis I – first division separates homologous pairs (diploid haploid) Meiosis II – second division separates sister chromatids haploid (2 copies) haploid (1 copy) Compare mitosis and meiosis Meiosis - makes gametes Fertilization – haploid diploid Nondisjunction – chromosomes do not separate correctly Karyotype Chromosome mutations