Home Forum Dictionary Articles Tutorials Books Directory Share your work


Edit page | Page history | Printable version

Dictionary » N » Nucleolus

Nucleolus

Definition

noun, plural: nucleoli

The round granular structure within the nucleus of a cell, and composed of protein and RNA.


Supplement

Nucleolus is involved with ribosomal RNA synthesis and formation of ribosomes in eukaryotes.


Word origin: New Latin, from Latin, diminutive of nucleus, kernel.

Related forms: nucleolar (adjective).

See also: nucleus.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Ribossome production paradox?

It is said that the cell nucleolus controls the production of rRNA, that is, it produces ribossomes. The DNA lingers in the nucleolus attached to proteins from where it begins the rRNA production process. But it is also said that the ...

See entire post
by Rutibrom
Thu Jul 05, 2012 12:00 am
 
Forum: Cell Biology
Topic: Ribossome production paradox?
Replies: 3
Views: 1769

MITOSIS PHASES QUESTION?

... undergoing mutation. 2. Prophase The DNA molecules progressively shorten and condense by coiling, to form chromosomes. The nuclear membrane and nucleolus are no longer visible. The spindle apparatus has migrate to opposite poles of the cell.. 3. Metaphase The spindle fibres attach themselves ...

See entire post
by HerrBiologie
Sun Oct 30, 2011 9:16 am
 
Forum: Cell Biology
Topic: MITOSIS PHASES QUESTION?
Replies: 2
Views: 1968

eukaryotic cells - link?

... with a detailed drawing/photograph/diagram of a eukaryotic cells as seen under and electron microscope with the following structures: nucleus, nucleolus, nuclear envelope, rough and smooth endoplasmic reticulum, golgi apparatus, ribosome, centrioles etc...

See entire post
by Boku
Sat Oct 15, 2011 2:20 pm
 
Forum: Cell Biology
Topic: eukaryotic cells - link?
Replies: 2
Views: 1202

Re:

Talcen, are you sure the nucleolus assembles the ribosomal subunits? I think that is done in the cytoplasm. nucleolus does. .

See entire post
by greatmicrobiologist
Thu Sep 08, 2011 12:13 pm
 
Forum: Cell Biology
Topic: Nucleolus
Replies: 5
Views: 5018

Nucleolus

Thank you everybody! Your help is much appreciated. Talcen, are you sure the nucleolus assembles the ribosomal subunits? I think that is done in the cytoplasm.

See entire post
by Adz795
Wed Sep 07, 2011 11:34 am
 
Forum: Cell Biology
Topic: Nucleolus
Replies: 5
Views: 5018
View all matching forum results

This page was last modified 06:22, 25 October 2008. This page has been accessed 160,338 times. 
What links here | Related changes | Permanent link