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Phenotypic threshold

phenotypic threshold

A quantitative genetic trait with a continuous distribution termed its liability may generate two kinds of phenotype, according to whether the liability lies above or below some critical threshold at about which a radical change in behaviour occurs. For instance, blood uric acid level is a liability with an approximately gaussian distribution. At a critical point of chemical saturation (the threshold crystallization occurs and the resulting gout or nongout is a threshold trait.


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Mutations

... looking for scientific validation that mutations can create beneficial phenotypic effects. It's a poor analogy because no one claims that potassium ... sequences you still get 25% similarity. So what does a 90% or 95% threshold of similarity mean? Is 90% really closely related or not? Plus ...

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by mith
Wed Aug 22, 2007 3:38 pm
 
Forum: Evolution
Topic: Mutations
Replies: 42
Views: 18471


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