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| Description: Comparative summary of key features of mitosis and meiosis, starting with a diploid cell. Only two paternal and two maternal chromosomes are shown, for clarity. Mitosis maintains the parental chromosome number. Meiosis halves it, to the haploid number. Prophase I • Chromosomes condense. • Homologous chromosomes pair. • Crossovers occur (not shown). • Spindle forms and attaches chromosomes to spindle poles. • Nuclear envelope breaks up. Metaphase I • Chromosomes align midway between spindle poles. Anaphase I • Homologous chromosomes separate and move toward at spindle poles. Telophase I • Chromosome clusters arrive opposite spindle poles. • New nuclear envelopes form. • Chromosomes decondense. Picture Stats: Views: 33 Filesize: 360.86kB Height: 1059 Width: 2088 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=48841 Keywords: Comparing Mitosis and Meiosis |