Login

Join for Free!
114148 members


RNA

Discussion of all aspects of biological molecules, biochemical processes and laboratory procedures in the field.

Moderator: BioTeam

RNA

Postby lohita » Thu Apr 07, 2005 2:22 am

what does RNA do in a cell? :?
User avatar
lohita
Death Adder
Death Adder
 
Posts: 84
Joined: Sat Mar 26, 2005 3:59 am
Location: canada (indian)

Postby Poison » Thu Apr 07, 2005 4:58 pm

Here are the basic functions:
mRNA: Takes info from DNA and carries it to ribosome.
rRNA: found on the ribosomes.
tRNA: carries proper aminoacids to the ribosome for protein synthesis.
It matters not how strait the gate
How charged with punishment the scroll
I am the Master of my fate
I am the Captain of my soul.
User avatar
Poison
Inland Taipan
Inland Taipan
 
Posts: 2322
Joined: Sun Jan 02, 2005 12:44 pm
Location: Turkey

Postby James » Fri Apr 08, 2005 12:13 am

What does mitochondriol DNA/RNA do?
User avatar
James
King Cobra
King Cobra
 
Posts: 552
Joined: Wed Feb 23, 2005 11:00 pm
Location: England


Postby biostudent84 » Fri Apr 08, 2005 12:15 am

I was able to meet a human geneticist once...she told me that they still don't know what it's for. They might have discovered the function since then though.

But I do know that it is identical to your mother's DNA.
User avatar
biostudent84
Site Admin
Site Admin
 
Posts: 974
Joined: Thu Nov 11, 2004 6:00 am
Location: Farmville, VA

Postby James » Fri Apr 08, 2005 12:42 am

Now there's a puzzle :shock:
User avatar
James
King Cobra
King Cobra
 
Posts: 552
Joined: Wed Feb 23, 2005 11:00 pm
Location: England

Postby mith » Fri Apr 08, 2005 1:10 am

Doesn't it do the same thing except it services the mitochondria only?
Living one day at a time;
Enjoying one moment at a time;
Accepting hardships as the pathway to peace;
~Niebuhr
User avatar
mith
Inland Taipan
Inland Taipan
 
Posts: 5345
Joined: Thu Jan 20, 2005 8:14 pm
Location: Nashville, TN

Postby Garff » Wed Apr 20, 2005 2:54 pm

biostudent84 wrote:I was able to meet a human geneticist once...she told me that they still don't know what it's for. They might have discovered the function since then though.

But I do know that it is identical to your mother's DNA.


This is true, the theory goes as follows............

Mitochondrias were once a kind of bacteria surviving on there own, however some millions of years ago they invaded our ancient relatives (really ancient, before we were multicellular) and lived inside these cells. The relationship had some beneit to both parties (symbiosis), the mitochondria give our cells chemical energy and they gain protection, so the bacteria remained within this cell and replicate almost independently of the cell. This is why it has it's own DNA and subsequently RNA.

The reason mitochindria DNA is always the same as your mother's mitochondrial DNA is because the sperm does not pass any mitochondria into the egg. Therefore any mitochondria in YOUR body came from your mother.
Garff
Garter
Garter
 
Posts: 1
Joined: Wed Apr 20, 2005 2:34 pm

Postby biostudent84 » Wed Apr 20, 2005 4:14 pm

Wow! Garff! More information please! What's this theory called?
User avatar
biostudent84
Site Admin
Site Admin
 
Posts: 974
Joined: Thu Nov 11, 2004 6:00 am
Location: Farmville, VA

Postby James » Wed Apr 20, 2005 4:23 pm

Does it affect our phenotypes?
User avatar
James
King Cobra
King Cobra
 
Posts: 552
Joined: Wed Feb 23, 2005 11:00 pm
Location: England

Postby biostudent84 » Wed Apr 20, 2005 4:41 pm

James wrote:Does it affect our phenotypes?


http://biocrs.biomed.brown.edu/Books/Es ... alDNA.html
User avatar
biostudent84
Site Admin
Site Admin
 
Posts: 974
Joined: Thu Nov 11, 2004 6:00 am
Location: Farmville, VA


Return to Molecular Biology

Who is online

Users browsing this forum: No registered users and 3 guests

cron