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
- In-fighting ‐ boxing at close quarters [n] conflict between members of the…
- Protestant deacon ‐ a Protestant layman who assists…
- Awake ‐ stop sleeping; "She woke up to the sound of the…
- Mensa ‐ a faint constellation in the polar region of the southern hemisphere…
- Calculus ‐ the branch of mathematics that is concerned with limits and with…
- Sonny ‐ a male child (a familiar term of address…
- Houyhnhnm ‐ one of a race of intelligent horses who ruled the Yahoos in Swift's…
- Spontaneity ‐ the quality of being spontaneous and coming from natural feelings…
- Harikari ‐ (Japan) ritual suicide by self-disembowelment on a sword; practiced…
- Copland ‐ United States composer who developed a distinctly American music…