Junk DNA

by **scottyiu** » Thu Dec 08, 2005 9:52 am

What is junk DNA?

by **jnkdna** » Thu Dec 08, 2005 11:05 am

dats my nick name!hehehe! they're introns

by **scottyiu** » Thu Dec 08, 2005 11:39 am

Thanks for answering. However, i don't really understand what you just said...

by **GreenDog** » Thu Dec 08, 2005 3:51 pm

Never, ever, ever say junk DNA.
People call junk DNA all DNA with unknown function it means all DNA which does not produce protein or has a regulatory function.
For example introns, they are segments of DNA from a gene which are transcribed to RNA, then cut out and disappear (They do not code for protein). Thir funcion (If there is one) is unknown yet.
Same goes for other DNA with mysterious function, SiRNA was once junk DNA.

by **Bio-Hazard** » Thu Dec 08, 2005 4:03 pm

http://en.wikipedia.org/wiki/Junk_dna

by **scottyiu** » Fri Dec 09, 2005 1:44 pm

Thank you for replying. I know a lot more about er... "junk DNA"

by **Ilyaas** » Fri Dec 09, 2005 9:08 pm

Can anyone explain what satellite DNA is? I'm confused. Is it part of what is referred to as "junk" DNA?

Junk DNA

Junk DNA

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