| 单词 |
segmentation nucleus |
| 释义 |
Segmentation nucleus
| (Biol.) | the body formed by fusion of the male and female pronucleus in an impregnated ovum. See the Note under Pronucleus. |
See also: Segmentation EncyclopediaSeenucleussegmentation nucleus
seg·men·ta·tion nu·cle·us1. the compound nucleus in the fertilized oocyte, formed by conjugation of the nuclei of the oocyte and sperm (female and male pronuclei); 2. the zygote nucleus after it commences the first cleavage division. segmentation nucleusThe cell nucleus of a zygote formed by fusion of the male and female pronuclei.See also: nucleus |
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