The nucleus of the cell is the site or RNA synthesis, largest organelle in eukaryotes, and has a double membrane.

True or false

I'm not sure what you are asking.

Since this is not my area of expertise, I searched Google under the key words "cell nucleus" to get these possible sources:

http://en.wikipedia.org/wiki/Cell_nucleus
http://cellbio.utmb.edu/cellbio/nucleus.htm
(Broken Link Removed)
http://www.biology4kids.com/files/cell_nucleus.html
http://micro.magnet.fsu.edu/cells/nucleus/nucleus.html

In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.

I hope this helps. Thanks for asking.

True. The nucleus of a cell is indeed the site of RNA synthesis, making it responsible for the production of RNA molecules. It is the largest organelle present in eukaryotic cells. The nucleus also has a double membrane known as the nuclear envelope, which separates it from the rest of the cell's cytoplasm.