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Dictionary » N » Null cell

Null cell

null cell

lymphocytes lacking typical markers of T or b-cells capable of lysing a variety of tumour or virus infected cells without obvious antigenic stimulation, also effect antibody dependent cell cytotoxicity, carry in humans CD16 marker.


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Re: Theories - Origin of Life

... code and can act on it. Now it is this method of communication that the cell uses. Here is an example of a fairly simple regulatory system. The lac ... shown why this is not possible even in theory. They have put forward 4 Null Hypothesis and invites them to be falsified. To date there has been ...

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by scottie
Fri May 20, 2011 8:09 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 757594

Re: resistance

... want. I’m not sure, but I think the measurement goes someting like a null potentiometer; you apply a voltage across the membrane that opposes ... The potential at that point has to be equal to the potential of the cell membrane, but in the opposite direction. You have to know the resistance ...

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by blcr11
Wed Nov 12, 2008 8:43 pm
 
Forum: General Discussion
Topic: resistance
Replies: 3
Views: 3027

Lymphoid Progenitor Cells

Then what is the difference between these cells and 'null' cells? They both seem to be an early stage of bone marrow cells Null cell or killer cell (K cell) ...

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by Dr.Stein
Mon Jan 09, 2006 8:36 am
 
Forum: Human Biology
Topic: Lymphoid Progenitor Cells
Replies: 18
Views: 13626

Biology Quiz

... G most? #Why is Poly-A sequence upstream of a reporter gene? #Isogenic cell lines? #Null cell lines? #Aneuploid? #Monoclonal antibodies? #Lineage? #Species? #Decontaminate the ...

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by summer
Wed Mar 23, 2005 1:04 am
 
Forum: Molecular Biology
Topic: Biology Quiz
Replies: 2
Views: 5384


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