Login

Join for Free!
116891 members


How much RNA is there in a cell?

Genetics as it applies to evolution, molecular biology, and medical aspects.

Moderator: BioTeam

How much RNA is there in a cell?

Postby DrCl » Mon Aug 24, 2009 8:16 pm

Hello,

Can someone please tell me how much total RNA is found in a mammalian cell? And of it, what percentage is coding RNA?

Thanks!!!!!!!
DrCl
Garter
Garter
 
Posts: 3
Joined: Wed Aug 12, 2009 9:53 pm

Postby rtblue » Wed Aug 26, 2009 2:14 am

well.... the RNA and DNA amounts of a cell will vary, from organism to organism, please give us an organism.
Alabama school of fine arts baby!!! Department of math and science.. ;)
rtblue
Garter
Garter
 
Posts: 3
Joined: Wed Aug 26, 2009 2:07 am
Location: Birmingham, AL

Postby Yasaman.herandy » Fri Sep 25, 2009 12:16 pm

Hey,
I know the RNA in chloroplast and mitochondria are different from the RNA in cytoplasm, but is the RNA in chloroplast different from the one in mitochondria?
Yasaman.herandy
Garter
Garter
 
Posts: 29
Joined: Thu Feb 22, 2007 6:25 pm


Re:

Postby JackBean » Sat Sep 26, 2009 1:28 pm

Yasaman.herandy wrote:Hey,
I know the RNA in chloroplast and mitochondria are different from the RNA in cytoplasm, but is the RNA in chloroplast different from the one in mitochondria?

Definitelly, the DNA in both organelles codes for other genes, so you must have other RNA as well ;)
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5667
Joined: Mon Sep 14, 2009 7:12 pm

Re: How much RNA is there in a cell?

Postby Yasaman.herandy » Fri Oct 02, 2009 4:55 pm

I asked the same question from my biology teacher. He said, the mitochondrial ribosomes, the chloroplast ribosomes & the bacterial ribosomes are so similar that if you (For example) take the little subunit of ribosome from mitochondria & the large subunit from chloroplast & give it to a bacteria it will be able to produce protein :!:
Yasaman.herandy
Garter
Garter
 
Posts: 29
Joined: Thu Feb 22, 2007 6:25 pm

Postby JackBean » Sat Oct 03, 2009 5:12 am

Well, that's a little bit other question ;)
The point you are asking now is, whether the homologous sequences are similar enough to be able to complement each other.
I was answering, whether the complete chromosomes are similar.

Both posts are correct. (Althrough, I think, that not whole ribosome is coded by mitochondrion/plastid). My point is, that plastids and mitochondrion are coding for different proteins (e.g. photosynthesis aparathus in chloroplast × Calvin cycle enzymes in mitochondrion) and also the dependence of these organels on nuclear gene transcription is various in different organisms ;)
(there was some picture in Alberts' Cell Biology regarding, what genes are coding chromosomes in (mitochondria/plastids?) of different species)
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5667
Joined: Mon Sep 14, 2009 7:12 pm

Postby Yasaman.herandy » Sun Oct 04, 2009 1:49 pm

Guess I was a bit confused. Thanks for the help & sorry for the awful English ;)
Yasaman.herandy
Garter
Garter
 
Posts: 29
Joined: Thu Feb 22, 2007 6:25 pm

Postby JackBean » Mon Oct 05, 2009 9:37 am

You're welcome. I hope, I've helped ;)
http://www.biolib.cz/en/main/

Cis or trans? That's what matters.
User avatar
JackBean
Inland Taipan
Inland Taipan
 
Posts: 5667
Joined: Mon Sep 14, 2009 7:12 pm


Return to Genetics

Who is online

Users browsing this forum: No registered users and 0 guests

cron