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Dictionary » C » Cap

Cap

Cap

(Science: abbreviation) catabolite (gene) activator protein.

1. Any anatomical structure that resembles a cap or cover.

2. A protective covering for an incomplete tooth.

3. Colloquialism for restoration of the coronal part of a natural tooth by means of an artificial crown.

4. The nucleotide structure found at the 5' terminus of many eukaryotic messenger rnas, consisting of a 7-methylguanosine connected, via its 5'-hydroxyl group, by a triphosphate group to the 5'-hydroxyl group of the first nucleoside encoded by the DNA; usually symbolised as m7G5'ppp5'N, where N is nucleoside number 1 in the transcribed mrna and is often itself methylated; the cap is added posttranscriptionally.


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How to prepare a 3.5% agarose gel ?

I usually do it in the bottle with cap and I keep it on (just not tighten it firmly). As long as it is not properly dissolved. I'm usually working with 1% agarose, but I think I have prepared also 4% in this way.

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by JackBean
Tue Feb 12, 2013 10:10 am
 
Forum: Molecular Biology
Topic: How to prepare a 3.5% agarose gel ?
Replies: 4
Views: 949

Biology question help?

... with starvation). What would happen to the expression of beta-galactosidase? Options: 1.It would be activated because the cAMP binding protein CAP would bind to the beta-galactosidase promoter 2. It would be reduced 3. It would remain at the same relatively high level 4. It would remain at ...

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by revision
Sat Dec 08, 2012 6:24 pm
 
Forum: Molecular Biology
Topic: Biology question help?
Replies: 5
Views: 1313

protiens

... associated with starvation). What would happen to the expression of beta-galactosidase? 1. It would be activated because the cAMP binding protein CAP would bind to the beta-galactosidase promoter 2. It would be reduced 3. It would remain at the same relatively high level 4. It would remain at ...

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by 2468
Tue Dec 04, 2012 1:11 am
 
Forum: Molecular Biology
Topic: protiens
Replies: 1
Views: 768

Blue Blood For A Science Project

... blood is easy to check with modern evacuated blood collection tubes: simply draw a sample of venous blood (low on oxygen, deep red) and open the cap of the tube to see if exposure to oxygen changes it. And for comparison, mistakenly hit an artery when taking the sample to see what oxygenated ...

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by biohazard
Thu Sep 27, 2012 9:08 am
 
Forum: Human Biology
Topic: Blue Blood For A Science Project
Replies: 13
Views: 2521

Exercises for better coordination/dexterity in lab?

... 1 microlitre of solution onto a sensor, I can't set up a agarose filtration column before the agarose has settled because I fumble with taking the cap off and on, and let's not talk about how often I bump the container wall when I pipette. This is in addition to my harmless but embarrassing problems ...

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by Rowan
Fri May 18, 2012 12:57 am
 
Forum: Microbiology
Topic: Exercises for better coordination/dexterity in lab?
Replies: 2
Views: 1567
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