Cis and Trans Elements of Operon?
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Cis and Trans Elements of Operon?
What is the difference between CIS and TRANS elements when regarding operons? I know that it has something to do with one being on the same DNA molecule, but it's a bit foggy to me. Can anyone explain them and how they assist in regulation of the genes?
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...Purely for the sake of science...
...Purely for the sake of science...
- bipinnavlakha
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- MrMistery
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cis and trans are two terms generally used in genetics.
Cis means that it must be on the same strand in order to act. The promoter of gene only acts in cis (a promoter somewhere else will not influence the gene).
Trans means that it need not be on the same DNA strand(of course it can still be, it just isn't a requirement). The repressor gene acts in trans. It doesn't really matter where it is located, as long as it makes the repressor protein.
Cheers.
BTW, are you by any chance taking an intro molecular biology college course?
Cis means that it must be on the same strand in order to act. The promoter of gene only acts in cis (a promoter somewhere else will not influence the gene).
Trans means that it need not be on the same DNA strand(of course it can still be, it just isn't a requirement). The repressor gene acts in trans. It doesn't really matter where it is located, as long as it makes the repressor protein.
Cheers.
BTW, are you by any chance taking an intro molecular biology college course?
"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
- MrMistery
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No. I was just curios. Cause this is about the time molecular biology courses cover cis and trans.
You are encouraged to ask anything you find unclear on the forum. That is one of the reasons this forum is here for.
You are encouraged to ask anything you find unclear on the forum. That is one of the reasons this forum is here for.
"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
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