Dictionary » D » Divalent

Divalent

Definition

adjective

(chemistry) Having a valence of two, as a molecule having two valences.


Supplement

Word origin: di- (a combining form meaning twice, two, double) + valence
Related forms: divalence (noun)

Synonym: bivalent


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Competent cell preparation

... discard it and make a fresh SOB solution, but is there any other way through I could save the reagent from getting wasted. What would happen to divalent ions if I add them and then autoclave the solution?

See entire post
by jshreyas
Thu Jan 14, 2010 6:36 pm
 
Forum: Molecular Biology
Topic: Competent cell preparation
Replies: 1
Views: 873

Can any one clarify my question with DNA

... the pH adjusted to 8?" Now as a beginning of an answer: NaCl is used to prevent the co-precipitation of DNA and CTAB. EDTA is used to chelate divalent cations, which are necessary (among other things) for proper DNASe activity Tris is a Buffer CTAB is a cationic detergent that precicpitates ...

See entire post
by canalon
Fri Mar 14, 2008 3:25 pm
 
Forum: Molecular Biology
Topic: Can any one clarify my question with DNA
Replies: 2
Views: 2722

Re: Are these right?--won't take long..

... The technique used to separate according to size is gel filtration chromatography. apain incubated with EDTA: Activates enzyme activity by binding divalent metal cationshave no effect on enzyme activty activate enzyme activty by modifying the casein substrate inhibit enzyme activty by binding divalent ...

See entire post
by MrMistery
Sat Nov 03, 2007 3:57 pm
 
Forum: Molecular Biology
Topic: Are these right?--won't take long..
Replies: 3
Views: 3057

Are these right?--won't take long..

... the light absorption will go off the scale the initial rate is always the slowest Papain incubated with EDTA: Activates enzyme activity by binding divalent metal cations have no effect on enzyme activty activate enzyme activty by modifying the casein substrate inhibit enzyme activty by binding ...

See entire post
by biology_06er
Sat Nov 03, 2007 4:16 am
 
Forum: Molecular Biology
Topic: Are these right?--won't take long..
Replies: 3
Views: 3057

Bacterial Plasmid DNA extraction

TE is TRis EDTA. Tris is a buffer, EDTA is an chelator for divalent cations. Since many DNAse use metallic cations (Mg2+ etc..) as coenzyme, if they are chelated, they will not be able to degrade your DNA during extraction.

See entire post
by canalon
Tue Jun 19, 2007 6:50 pm
 
Forum: Molecular Biology
Topic: Bacterial Plasmid DNA extraction
Replies: 3
Views: 3194
View all matching forum results

This page was last modified 23:43, 30 September 2009. This page has been accessed 3,149 times. 
What links here | Related changes | Permanent link