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Galactose

Galactose

(Science: biochemistry) hexose identical to glucose except that orientation of H and OH on carbon 4 are exchanged.

a component of cerebrosides and gangliosides, glycoproteins. Lactose, the disaccharide of milk, consists of galactose joined to glucose by a _(1-4) glycosidic link. A simple Sugar found in lactose.A monosaccharide that does not occur naturally, though produces lactose when combined with [[glucose.


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An Investigation of ABO Group Antigen Structure question?

Group O red blood cells have been incubated with either UDP-galactose or UDP-N- acetyl galactosamine together with group A, group B or group O serum for six hours at 37oC as follows: Tube 1 Group O cells UDP-NacG O-serum Tube 2 Group O cells UDP-Gal O-serum ...

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by revision
Fri Feb 07, 2014 8:17 pm
 
Forum: Molecular Biology
Topic: An Investigation of ABO Group Antigen Structure question?
Replies: 1
Views: 1392

Secondary Sugars(metabolism/sugar/bacteria/Lac Operon)

... final tomorrow and we are focusing a lot on the lac operon series and some of the metabolic processes of sugars. I know that bacteria cells prefer galactose, but will still use lactose, so does that mean lactose is a secondary sugar? Also does that make allolactose(lac operon inducer) a secondary ...

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by Vulpess
Mon Dec 16, 2013 3:40 am
 
Forum: Microbiology
Topic: Secondary Sugars(metabolism/sugar/bacteria/Lac Operon)
Replies: 2
Views: 1653

mRNA transcripts, cis/trans-acting questions

... these two homework questions. I have no idea where/how to start to figure these out. You have isolated several yeast mutants unable to metabolize galactose. All of the mutants fail to transcribe the GAL2 gene, which encodes the enzyme for the first step in metabolizing galactose. For mutants a. ...

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by animus31
Fri Nov 09, 2012 11:58 am
 
Forum: Genetics
Topic: mRNA transcripts, cis/trans-acting questions
Replies: 0
Views: 2043

galactose metabolism

plz help....i need this urgently......i have isolated a mutant cell of yeast that cannot take part in a particular step of galactose metabolism...in order to identify the gene responsible for it.....i have transformed the cell with plasmid vectors containing fragments of genomes of ...

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by APmicro
Thu Oct 11, 2012 3:46 am
 
Forum: Cell Biology
Topic: galactose metabolism
Replies: 0
Views: 1002

I need some help...

... as to how to make a 100 mg/mL solution. I also do not know how to accurately record the enzymes activity other than by looking at the glucose and galactose concentration in a given period of time (in this case, 5 minutes); now the problem lies in what are some precise ways to measure the glucose ...

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by fubario
Fri Mar 16, 2012 3:34 am
 
Forum: Molecular Biology
Topic: I need some help...
Replies: 3
Views: 2624
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