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Negative

negative

Not affirming the presence of the organism or condition in question (a negative diagnosis).


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Graphs depicting qPCR fold change

... up-regulation. But the problem with this method is that it is harder to appreciate the extent of down-regulation. 2. Using inverse values where negative values (<-1) represent down-regulation and positive values (>+1) represent up-regulation. However, the problem with this approach is ...

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by loudowns
Mon Jun 30, 2014 4:37 pm
 
Forum: Molecular Biology
Topic: Graphs depicting qPCR fold change
Replies: 0
Views: 272

Propagation and Transfection of BHK cells?

A and B and negative controls to check for viability of your cells and your media (A) and the process of transfection (B)

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by JackBean
Sun May 04, 2014 12:39 pm
 
Forum: Molecular Biology
Topic: Propagation and Transfection of BHK cells?
Replies: 2
Views: 1151

A question about evolution.

... before starting to develop the feature? Not as far as we know. How does evolution work ? Evolution (defined as change over time) works via negative selection. That means that random mutations appear all the time and those that are detrimental to survival are removed from the population ...

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by Cat
Sun Apr 20, 2014 3:18 pm
 
Forum: Evolution
Topic: A question about evolution.
Replies: 1
Views: 636

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 in the ...

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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: 1154

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

... will be. The one that really throws me off is number 2, because it seems like we might not get a reaction? Are number 1 and 2 just positive and negative controls? Based on the few PCR reactions I tried drawing out myself (sorry, don't have an image), from my understanding, the amplified products ...

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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: 2
Views: 2157
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