| 释义 |
polocyte Biol.|ˈpəʊləʊsaɪt|
[f. pole n.2 + -o + -cyte.]
= polar body s.v. polar a. 5.
1915C. W. Prentiss Lab. Manual & Text-bk. Embryol. i. 28 The cleavage is unequal and, instead of four cells of equal size resulting, there are formed one large ripe ovum or oöcyte and three rudimentary or abortive ova known as polar bodies or polocytes. 1927[see ootid]. 1931J. E. Frazer Man. Embryol. i. 6 Among the lower animals it seems to be usual for maturation not to be completed (i.e., the second polocyte not to be cast off) before conjugation with the male cell is effected. 1969F. D. Allan Essentials Human Embryol. (ed. 2) i. 14 Polocytes consist of a nuclear mass and a delicate cytoplasmic sheath and have no known function in addition to the passive role they play in meiosis, i.e., reduction or elimination of excess chromosomal material. |