spermatocyte defined in 1951 year

spermatocyte - spermatocyte;
spermatocyte - (1) (Bot.). Cell which becomes converted into spermatozooid (without intervention of cell division). Compare with: Spermatid. (2) (Zool.). Cell which undergoes meiosis, and thereby forms spermatids. Primary spermatocyte undergoes first of the two meiotic divisions. As a result it gives rise to two secondary spermato-cytes. The latter undergo the second meiotic division, each forming two spermatids. One primary spermatocyte thus produces four spermatozoa (one primary oocyte producing only one ovum). Compare with: Oocyte, Maturation of Germ-Cells.

near spermatocyte in Knolik

letter "S"
start from "SP"

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