Login

Join for Free!
118871 members


2 questions concerning RNA

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

Moderator: BioTeam

2 questions concerning RNA

Postby ramo » Tue Feb 15, 2005 3:32 am

I have two questions about RNA I would like to ask:

1. Why is uracil used in RNA instead of thyamine?

2. Why does a cell never run out of ribnucleotides? I mean where do they come from besides from introns being recycled?
ramo
Garter
Garter
 
Posts: 2
Joined: Tue Feb 15, 2005 3:30 am

Postby chintu » Tue Feb 15, 2005 12:20 pm

For the first :
Thyamine will give more stability for the strand. if RNA had the thymine it aquires more stability this will affect the synthesis of proteins. i think this is the reason.
i cant understand ur second one.
chintu
Garter
Garter
 
Posts: 1
Joined: Mon Feb 14, 2005 12:00 pm

Postby DevGrp » Tue Feb 15, 2005 12:59 pm

Cells turn over their mRNA quite quickly, some mRNAs only last minutes. So I guess cells recyle their ribonucleotides. They can also synthesis fresh ones as required .
DevGrp
Death Adder
Death Adder
 
Posts: 82
Joined: Wed Jan 26, 2005 12:32 pm
Location: UK


Postby ramo » Tue Feb 15, 2005 8:29 pm

ok i get the first question, but as far as recycling the nucleotides is concerned does the RNA re-enter the nucleus to be recycled after it has been thorugh the ribosomes and made the protein?
ramo
Garter
Garter
 
Posts: 2
Joined: Tue Feb 15, 2005 3:30 am


Return to Molecular Biology

Who is online

Users browsing this forum: No registered users and 0 guests