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Property Organism Value Units ID Details
Turnover of oocytes after birth Human Homo sapiens 0 new oocytes formed 111452 Faddy MJ, Gosden RG,...
Duration of spermatogenesis Mouse Mus musculus ~34.5 days 110663 Oakberg EF. Duration...
Duration of stages of the cycle of the seminiferous epithelium Mouse Mus musculus Table - link N/A 110662 Oakberg EF. Duration...
Percent of triploids out of total conceptions Human Homo sapiens 1-3 % 105419 McFadden DE, Kwong LC...
Estimate of cycle length (of seminiferous epithelium) based on reappearance of spermatids at 25-29 days and of sperm at 34-38 days Mouse Mus musculus 8.7 Table - link days 110661 Oakberg EF. Duration...
Estimate of cycle length (of seminiferous epithelium) based on disappearance of successive generations of cells with increase in time after irradiation Mouse Mus musculus 8.6 Table - link days 110660 Oakberg EF. Duration...
Number of oocytes in female Human Homo sapiens at ∼20 weeks gestation several million: at birth ∼1–2 million: at age 37.5 ∼25,000: at age 51 1,000 oocytes 111451 Lobo RA. Early ovarian...
Number of cell divisions between a zygote and the gametes (per generation) Thale cress Arabidopsis thaliana 30 to 40 Divisions/generation 106749 Stephan Ossowski et al....