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Dictionary » P » Positive

Positive

positive

Having a value greater than zero, indicating existence or presence of a condition, organism, etc. As chromatin positive or Wassermann positive, characterised by affirmation or cooperation.

Origin: L. Positivus


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identify bacterias in Gram stain kit &The Giemsa Stain Kit

The Gram Stain Kit is intended for the demonstration and differentiation of Gram-positive and Gram-negative bacteria. Gram Positive Bacteria: Blue Gram Negative Bacteria: Red Other Tissue: Yellow Nuclei: Red The Giemsa Stain Kit (May-Grunwald) is intended for use ...

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by scytek
Sat Mar 15, 2014 1:11 pm
 
Forum: General Discussion
Topic: identify bacterias in Gram stain kit &The Giemsa Stain Kit
Replies: 0
Views: 61

Help: Confused with primers in a PCR of a vector?

... I'm not entirely familiar with what is going on. We recently ligated a gene into a pBS vector and popped it into some E. coli cells. We looked for positive clones via blue/white screening and isolated/purified the respective plasmid. Then, we carried out a PCR reaction of the pBS-gene (our clone). ...

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by keetner
Sat Mar 15, 2014 3:21 am
 
Forum: Molecular Biology
Topic: Help: Confused with primers in a PCR of a vector?
Replies: 0
Views: 65

What do you do when talking to creationists?

... a literal *interpretation* of scripture and explanations that are accounted for at least as well by evolution/plate tectonics there are no positive arguments for a young earth, or instant creation. All the arguments suggest problems with evolution and then posit biblical creation as the ...

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by FriarBroccoli
Sat Jan 18, 2014 2:40 am
 
Forum: Evolution
Topic: What do you do when talking to creationists?
Replies: 4
Views: 1482

Re: Re:

... at your location. I'm in the UK. I've researched Bartonella quite a bit. I had serology and PCR tests on it. Serology was negative, but PCR was positive, but wasn't able to identify the species. There are lots of species (more found each year) and the test I had looked for a common shared seqence. ...

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by snowathlete
Fri Dec 13, 2013 2:08 pm
 
Forum: Microbiology
Topic: What do you think these are, in my blood?
Replies: 16
Views: 3420

Conflicting results of Gram-Negative unknown

... for urease production RESULTS: Color change in media from peach to yellow *The next step of the flow chart asks if the urease test is pigment positive or pigment negative...not quite sure what that means. Has never been discussed in lab 6. Indole test *Negative RESULTS: No cherry red ring ...

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by Jrh21854
Sun Dec 01, 2013 8:25 pm
 
Forum: Microbiology
Topic: Conflicting results of Gram-Negative unknown
Replies: 0
Views: 694
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