Junk DNA

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

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scottyiu
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Junk DNA

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

What is junk DNA?
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jnkdna
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Post by jnkdna » Thu Dec 08, 2005 11:05 am

dats my nick name!hehehe! they're introns
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scottyiu
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Post by scottyiu » Thu Dec 08, 2005 11:39 am

Thanks for answering. However, i don't really understand what you just said...
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GreenDog
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Post 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.
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Bio-Hazard
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Post by Bio-Hazard » Thu Dec 08, 2005 4:03 pm


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

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

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Re:

Post by wiliamjack703 » Thu Aug 22, 2013 6:36 am

GreenDog wrote: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.

Hi GreenDog, I just agree with you that there is no junk DNA. You have said that some DNA is not functioning, what they should do. You have explained well. Everyone will get, what is actually called that, isn't it?

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