About The Word Pronucleus
Learn about the word Pronucleus to help solve your crossword puzzle. Discover Pronucleus definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Pronucleus
| Pronucleus Definition And Meaning |
|---|
What's The Definition Of Pronucleus?
[n] the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote
Synonyms | Synonyms for Pronucleus: Related Terms | Find terms related to Pronucleus: See Also | cell nucleus | karyon | nucleus Pronucleus In Webster's Dictionary \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.
|
More Crossword Puzzle Words
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
Cross Word Of The Day
- Compliant ‐ disposed or willing to comply; "children compliant with the parental…
- Hafnium ‐ a gray tetravalent metallic element that resembles zirconium…
- Wintertime ‐ the coldest season…
- Execution of instrument ‐ (law) the completion of a legal instrument (such as a contract…
- Insight ‐ grasping the inner nature of things intuitively [n] clear or…
- Festoonery ‐ flower chains suspended in loops…
- Intermeshed ‐ caught as if in a mesh; "enmeshed in financial difficulties"…
- Scratch ‐ an indication of damage [n] poor handwriting [n] a harsh noise…
- English hawthorn ‐ thorny Eurasian shrub of small tree having dense clusters of…
- Graphical ‐ written or drawn or engraved; "graphic symbols" [adj] relating…