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Mean sea level

mean sea level

(Science: marine biology) A tidal datum: the arithmetic mean of hourly water elevations observed over a specific 19-year cycle. Points on land can be referenced to a mean sea level, in which case the datum assumes zero elevation.


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principle of error-prone PCR???

... the size of Mn ions affect the Taq enzyme? Did they changes the fourth-level structure of the Taq enzyme, such as combine with the regulatory subunit to control the activity, or something else. I mean, it is obviously not the charges, Mn2+ ions carry two positive as well as ...

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by feixiaorou
Wed Oct 01, 2014 3:51 am
 
Forum: Molecular Biology
Topic: principle of error-prone PCR???
Replies: 4
Views: 628

translation from DNA

What jonmoulton wrote is true (regulation on RNA level), but further there is amplification of the signal (there can be thousands copies of each mRNA, each giving rise to hundreds of protein molecules), also, during replication of DNA the protein ...

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by JackBean
Tue Sep 30, 2014 8:16 am
 
Forum: Molecular Biology
Topic: translation from DNA
Replies: 2
Views: 705

Re: translation from DNA

... infer the process from observing modern biochemistry. However, I can speculate that much of the regulation of gene expression occurs at the RNA level, with variations in the stability of RNA, translational repression by mRNA, inhibition by natural antisense transcripts, etc. Perhaps the RNA ...

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by jonmoulton
Mon Sep 29, 2014 3:03 pm
 
Forum: Molecular Biology
Topic: translation from DNA
Replies: 2
Views: 705

antibiotic overuse ???

Firstly can I say that my knowledge is degree level only and secondly that I only joined today. I wanted to find a place to air my opinions on this matter as this discussion seems to be another "is there such a thing as global warming" ...

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by androspandros
Thu Sep 18, 2014 8:43 am
 
Forum: Human Biology
Topic: antibiotic overuse ???
Replies: 3
Views: 514

mRNA vs. cell reporter assay

... For upregulation, mRNA will reach steady-state fairly rapidly but there will be a longer delay as enough GFP is translated to reach a stable level.

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by jonmoulton
Mon Sep 08, 2014 5:27 pm
 
Forum: Cell Biology
Topic: mRNA vs. cell reporter assay
Replies: 2
Views: 839
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