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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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Methylene Blue Solution use in staining variety of bacteria?

... : http://www.scytek.com/products/26-MBS125-Methylene-Blue-Solution.asp Gram Stains is typically used to categorize bacteria into 2 groups (gram positive or negative) due to the differences in their cell wall structure. Generally, gram positive bacteria, such as those found in yogurt (Lactobacillus ...

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by scytek
Sun Feb 22, 2015 9:22 am
 
Forum: General Discussion
Topic: Methylene Blue Solution use in staining variety of bacteria?
Replies: 0
Views: 321

Basic Knowledge about DNA Extraction

... A gel box can separate DNA in an agarose gel with electricity. When charged with a power supply, the DNA will migrate through the gel toward the positive charge. And different sized pieces of DNA will move at different rates, thereby creating a size separation that can be differentiated in a ...

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by 2444256703
Thu Jan 22, 2015 8:56 am
 
Forum: Genetics
Topic: Basic Knowledge about DNA Extraction
Replies: 0
Views: 792

Diffusion and Fick's law

... a diffusion constant for substance A into B, which has units for length^2 and time^-1 and is a negative number to keep the diffusion flux value positive. So Fick's law is all about the amount of substance A diffusing into substance B per unit area per unit time in mol/(m^2.s). This could also ...

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by Scotsgofree
Sat Oct 25, 2014 3:10 pm
 
Forum: Cell Biology
Topic: Diffusion and Fick's law
Replies: 1
Views: 1377

Isogamous organisms

... the gametes, both are 100% identical (of course, there could be mutations, but no allele differentiation in matching-type regions, like the positive + and negative - mathing types in some algaes), and with a sexual reproduction. In isogamous organisms we have a small genetic differentiation ...

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by jaumzaum
Thu Oct 02, 2014 11:47 pm
 
Forum: General Discussion
Topic: Isogamous organisms
Replies: 0
Views: 1516

principle of error-prone PCR???

... as combine with the regulatory subunit to control the activity, or something else. I mean, it is obviously not the charges, Mn2+ ions carry two positive as well as magesium; plus, Mn2+ ions have exactly the same function with Mg2+, to active enzymes. So I am thinking that Mg2+ & Mn2+ combined ...

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by feixiaorou
Wed Oct 01, 2014 3:51 am
 
Forum: Molecular Biology
Topic: principle of error-prone PCR???
Replies: 5
Views: 2537
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