Definition of Pronucleus. Meaning of Pronucleus. Synonyms of Pronucleus

Here you will find one or more explanations in English for the word Pronucleus. Also in the bottom left of the page several parts of wikipedia pages related to the word Pronucleus and, of course, Pronucleus synonyms and on the right images related to the word Pronucleus.

Definition of Pronucleus

Pronucleus
Pronucleus Pro*nu"cle*us, n.; pl. Pronuclei (-[imac]). [NL. See Pro-, and Nucleus.] (Biol.) One of the two bodies or nuclei (called male and female pronuclei) which unite to form the first segmentation nucleus of an impregnated ovum. Note: In the maturing of the ovum preparatory to impregnation, a part of the germinal vesicle (see Polar body, under Polar) becomes converted into a number of small vesicles, which aggregate themselves into a single clear nucleus. which travels towards the center of the egg and is called the female pronucleus. In impregnation, the spermatozo["o]n which enters the egg soon loses its tail, while the head forms a nucleus, called the male pronucleus, which gradually travels towards the female pronucleus and eventually fuses with it, forming the first segmentation nucleus.

Meaning of Pronucleus from wikipedia

- finding of the pronucleus, and also found the formation of the female pronucleus involves the formation of polar bodies. The female pronucleus is the female...
- daughter with only 23 chromosomes, almost all of the cytoplasm, and the male pronucleus. The other product of meiosis is the second polar body with only chromosomes...
- the whole valium of the egg, allowing the egg pronucleus to use the cables to get to the male pronucleus. As the male and female pronuclei approach each...
- and the release of a polar body. The nucleus of the oocyte is called a pronucleus in this process, to distinguish it from the nuclei that are the result...
- and fuse with it to deliver two sub-cellular structures: (i) the male pronucleus that contains the genetic material and (ii) the centrioles that are structures...
- Transgenic mice generated through exogenous DNA microinjection of an embryo's pronucleus are also considered to be hemizygous, because the introduced allele is...
- primordium pronucleus Either of the haploid gametic nuclei, i.e. that of the ovum or sperm, as they exist prior to syngamy. The female pronucleus is formed...
- opposite pronucleus. It is thought that the growing plus end of the microtubule attaches directly to the motor protein of the opposite pronucleus, triggering...
- fertility. The ****tozoon that fertilizes an oocyte will contribute its pronucleus, the other half of the zygotic genome. In some species, the ****tozoon...
- is released from the ER the egg starts the process of forming a fused pronucleus and the restart of the mitotic cell cycle. Ca2+ release is also responsible...