DNA?

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

Moderators: honeev, Leonid, amiradm, BioTeam

Post Reply
nikky
Garter
Garter
Posts: 2
Joined: Sun Aug 05, 2007 9:58 pm

DNA?

Post by nikky » Wed Aug 08, 2007 12:20 am

What is the difference between DNA and RNA in replication?

User avatar
canalon
Inland Taipan
Inland Taipan
Posts: 3909
Joined: Thu Feb 03, 2005 2:46 pm
Location: Canada

Post by canalon » Wed Aug 08, 2007 9:56 pm

see:http://www.biology-online.org/1/1_cell.htm
Patrick

Science has proof without any certainty. Creationists have certainty without
any proof. (Ashley Montague)

PoOr
Garter
Garter
Posts: 9
Joined: Tue Jul 24, 2007 12:38 am

Post by PoOr » Wed Aug 08, 2007 10:00 pm

Nikki
You from South Jersey?
My course just covered that topic today in class.

nikky
Garter
Garter
Posts: 2
Joined: Sun Aug 05, 2007 9:58 pm

Post by nikky » Thu Aug 09, 2007 6:29 pm

PoOr
no, i'm from Minneapolis.
Cool your doing the same topic?
i'm doing this summer package for AP biology, can you tell me the difference between them?

Darby
Viper
Viper
Posts: 1278
Joined: Thu Mar 02, 2006 5:29 pm
Location: New York, USA

Post by Darby » Thu Aug 09, 2007 9:37 pm

RNA isn't really replicated, only DNA is. You need copies of the basic code, and RNA is made from the basic code.

david23
Coral
Coral
Posts: 430
Joined: Thu May 03, 2007 8:15 am

Post by david23 » Sat Aug 25, 2007 5:05 am

RNA can be replicated during RNA virus infections. Oh no, I just threw in some extra stuff not covered in the usual ap bio package. I think nothing short of copying pasting paragraphs will help.

Darby
Viper
Viper
Posts: 1278
Joined: Thu Mar 02, 2006 5:29 pm
Location: New York, USA

Post by Darby » Sat Sep 01, 2007 2:03 pm

Don't RNA viruses still go through a DNA intermediary to make the RNA for new viruses? It seems like they'd pretty much have to. But I guess that still would be a replication pathway...

User avatar
MrMistery
Inland Taipan
Inland Taipan
Posts: 6832
Joined: Thu Mar 03, 2005 10:18 pm
Location: Romania(small and unimportant country)
Contact:

Post by MrMistery » Sat Sep 01, 2007 2:57 pm

not all of them. Some do - retroviruses
Others have their own polymerase that can transcribe their RNA genome. Then that copy can serve either as mRNA or as a template to create more copies of their genome by RNA-dependent RNA polymerase
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

Post Reply

Who is online

Users browsing this forum: No registered users and 8 guests