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Factor

Factor

(Science: pharmacology) Any of several substances or activities that are necessary to produce a result, for example a coagulation factor.

Often, use of the term factor indicates that the chemical nature of the substance or its mechanism of action is unknown, as in endocrinology, where factors are renamed as hormones when their chemical nature is determined. (genetics) a segment of dna that is involved in producing a polypeptide chain; it can include regions preceding and following the coding dna as well as introns between the exons; it is considered a unit of heredity; genes were formerly called factors.


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Re:

... height. There will always be people who are unusually larger or shorter than their parents, but that doesn't mean the genes aren't the determining factor. Just like your parents can both be blonde and you can have brown hair. You still inherited the brown hair from your parents, even if they don't ...

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by Crucible
Thu Oct 06, 2011 1:32 am
 
Forum: Human Biology
Topic: Need help with human body growth
Replies: 14
Views: 3780

Prevalence of gene

... very simple to then write all of the species down. i get as far as Cricetulus griseus, the chinese hamster, and its Tumor necrosis factor receptor superfamily member 22 . As I know that CD40 is in this family I can trust it. If I get a bacterial sequence, I know I cant- such a thing ...

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by merv
Sun Oct 02, 2011 9:01 pm
 
Forum: Bioinformatics
Topic: Prevalence of gene
Replies: 9
Views: 1387

Re: Protein structure

... maybe more also occur), and this is dealt with here. As there is no defined 5th level, protein complexes with and without their substrates and co-factors tends to come under this category as well. Also many proteins only fold properly in association with a membrane insertion, and this should therefore ...

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by merv
Sun Oct 02, 2011 3:29 pm
 
Forum: Molecular Biology
Topic: Protein structure
Replies: 2
Views: 148

Colony staining and counting of bifidobacteria bb-12

... the Bifidobacterium species were classified into four classes: O2-hypersensitive, O2-sensitive, O2-tolerant, and microaerophilic. The primary factor responsible for aerobic growth inhibition is proposed to be the production of H2O2 in the growth medium. A H2O2-forming NADH oxidase was purified ...

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by aptitude
Sun Sep 11, 2011 6:57 am
 
Forum: Microbiology
Topic: Colony staining and counting of bifidobacteria bb-12
Replies: 1
Views: 175

Re:

... changes, increasing the reaction volume also increases the amount of reagents that you have in the reaction. They are still at the same diluted factor but it gives your pcr a better chance at working. I know for my baculovirus work, that when I was using a volume of 20uL nothing would work but ...

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by antonyviridae
Wed Sep 07, 2011 2:13 pm
 
Forum: Molecular Biology
Topic: PLease Please I need help with my PCR! Greatly appreciated!
Replies: 8
Views: 507
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