A pronucleus (pl.: pronuclei) denotes the nucleus found in either a sperm or egg cell during the process of fertilization. The sperm cell undergoes a transformation into a pronucleus after entering the egg cell but prior to the fusion of the genetic material of both the sperm and egg.

原核融合（pronuclei fussion）是指雄性原核和雌性原核发生融合的现象。 精细胞的细胞核进入卵细胞质后，包装紧密的染色质开始解旋。 精子的细胞核膜解体形成小的囊泡，并立即与精子细胞核脱离，形成没有核被膜的精子染色质，但很快形成新的核被膜，此时称为雄性原核 (male pronucleus)。 雄性原核向卵细胞的雌性原核移动，这种迁移是由精细胞的中心粒产生的微管指导的，精细胞的中心粒是随细胞核一同进入卵细胞的。 当两个原核相互接触时，通常会发生融 …

A pronucleus is defined as the nucleus that migrates towards the conjugation junction in a cell, gradually changing its shape to spindle-shaped and attaching to the junction by one of its pointed ends.

In mammalian fertilization, the haploid genome of each gamete becomes surrounded by its own nuclear (“pronuclear”) envelope, in which the first mitotic “S” phase takes place to generate two copies of each chromosome. Thus, there are two distinct pronuclei.

…nucleus, now called the male pronucleus, and the tail detaches. It is during the progress of these events that the oocyte initiates its final maturation division. Following the separation of the second polar body (one or two polar bodies are produced during division), the oocyte nucleus typically reconstitutes and is… Read More

A pronucleus is the nucleus of the sperm cell (male) or egg cell (female) before fertilization. You might find these chapters and articles relevant to this topic. Pankaj Singh, ... Ram Lakhan Singh, in Emerging Issues in Climate Smart Livestock Production, 2022. 1. Preparation of recombinant DNA as in the previous method. 2.

雄原核（male pronucleus）亦称精核。 当多细胞动物卵受精时，进入卵细胞内的精子核，在和雌性前核合为一体之前的时期，叫做雄性前核。 精子的头部即核的部位，在进入卵以后常朝一定方向回转而改变方向，且头部逐渐膨胀成为普通核的状态，在中心将连接头部的中间部，形成单一的星状体（精子星状体）。 不久靠近于雌性前核，并与之合一。 雄原核（male pronucleus）亦称精核。 当多细胞动物卵受精时，进入卵细胞内的精子核，在和雌性前核合为一体之前的时期，叫 …

pronucleus，英语单词，主要用作名词，作名词时译为“[生物] 原核；[遗] 前核”。

n. 原核 真核生物受精过程中，精、卵核的核膜已经破裂，但尚未融合成合子核的状态。 爱词霸权威在线词典,为您提供pronucleus的中文意思,pronucleus的用法讲解,pronucleus的读音,pronucleus的同义词,pronucleus的反义词,pronucleus的例句等英语服务。

2021年2月5日 · Here, we developed an experimental system that allowed us to follow and experimentally probe the entire process of pronuclear migration in live mouse zygotes. By combining it with loss-of-function...