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| Description: TABLE 7.3 A Comparison of the Duration of Meiosis in Males and Females Spermatogonium Primary spermatocyte Secondary spermatocyte Spermatid 1/ Mature sperm Total time } l l } 16 days 16 days 16 days 48 days Oogonium l Primary oocyte l Secondary oocyte l Ootid Mature egg-zygote Total time conception I_'_r Forms at 2 to 3 months after Forms at 2 to 3 months of gestation. Remains in meiosis | until ovulation, 12 to 50 years after formation. Less than 1 day, when fertilization occurs 12 to 50 years © Cengage Learning Picture Stats: Views: 147 Filesize: 197.42kB Height: 772 Width: 1500 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=44400 |