Egg Cell Size and Morula Cell Size Relative to GEIER’s r(KKCYMF) Benchmark by Stefan Geier et al.
Egg cell size and morula cell size relative to GEIER’s r(KKCYMF) cell size benchmark A COMPARATIVE MORPHOMETRIC SYNTHESIS by Stefan Geier et al. Abstract Egg cell size sets the physical scale of mammalian embryogenesis because cleavage partitions a large inherited cytoplasmic volume before substantial embryonic growth begins. A recent GEIER preprint proposed r(KKCYMF) ≈ 16.76 µm as a theoretical mesoscale radius, corresponding to a diameter threshold D_G = 33.52 µm; however, that construct is not established developmental cell biology and is best treated initially as a comparative morphometric comparator rather than a mechanism 1 . Here a literature-based synthesis of mouse, human, pig, bovine and buffalo oocytes, combined with human blastomere morphometrics and an equal-volume cleavage model, shows that mature or competence-associated egg cells exceed D_G by 2.21–4.37-fold in diameter 2-6 . The model predicts that descendants of mouse oocytes cross D_G betwee...
