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W factor

W factor --> biotin

(Science: biochemistry) A prosthetic group for carboxylase enzymes. Important in fatty acid biosynthesis and catabolism and has found widespread use as a covalent label for macromolecules which may then be detected by high affinity binding of labelled avidin or streptavidin. Essential growth factor for many cells.


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... females. There's a lot more in the paper. The hypothesis is tested using computational models and various assumptions for mate selection and other factors. There's no field testing, however; that would be the obvious next step. Other species have displayed similar processes to menopause as well ...

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by badgertoes
Sat Dec 28, 2013 9:01 am
 
Forum: Evolution
Topic: Gender divison in two opposites is greatest mistake of manki
Replies: 22
Views: 5770

When does gluconeogenesis kick in during physical activity?

... though they specified a few pages before that the main substrate for GNG is alanine (followed by lactate and glycerol). So there HAS to exist some factor that apparently delays GNG other than the aforementionned hormones, otherwise both metabolisms would start at the same time since they respond ...

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by Aymeric
Fri Dec 13, 2013 10:35 am
 
Forum: Human Biology
Topic: When does gluconeogenesis kick in during physical activity?
Replies: 12
Views: 2483

Natural Selection

Think about the factors that will influence the evolution of humans in the future. Name one factor that would exert influence through natural selection and one factor that would exert influence through artificial selection. A. natural ...

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by 1357
Mon Nov 25, 2013 6:47 pm
 
Forum: Evolution
Topic: Natural Selection
Replies: 2
Views: 1151

Solving World Hunger with Aphid Farms

For years the U.N. has been begging the world to embrace insects as a form of protein. The problem? Aside from the gross-out factor, they can be hard to catch, and when people do find a colony they rarely think to only take as much as the insects can produce, ensuring even those trying ...

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by erialsneider
Sun Nov 03, 2013 12:13 pm
 
Forum: General Discussion
Topic: Solving World Hunger with Aphid Farms
Replies: 2
Views: 1131

Sigma Factor Functions in Bacterial vs. Eukaryotes

PLEASE HELP! BIOCHEMISTRY HOMEWORK Sigma factor performs four important functions, each required before transcription can begin at a core promoter in bacteria. A) List the four functions. B) Name the transcription factors found in eukaryotes ...

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by sabrina9
Sat Nov 02, 2013 9:49 pm
 
Forum: Molecular Biology
Topic: Sigma Factor Functions in Bacterial vs. Eukaryotes
Replies: 0
Views: 589
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