Dictionary » Q » Quantitative trait

Quantitative trait

Definition

noun

A trait produced by the interaction and additive effects of quantitative genes


Supplement

Examples of quantitative traits are height, weight, skin color, and predisposition to heart diseases. Quantitative traits differ from monogenic trait by involving many genes acting together to produce a trait that does not follow a Mendelian inheritance pattern.


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What is qualitative trait loci?

... in sorghum, the resistance response appears to be controlled by several quantitative trait loci (QTLs) that account for a significant portion of the resistance phenotype." ...

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by Holmes
Mon Oct 08, 2012 2:53 pm
 
Forum: General Discussion
Topic: What is qualitative trait loci?
Replies: 1
Views: 1763

Evolution questions

... leaves must be adapted for sunnier conditions. d. this must be a trait that expresses quantitative variation. e. natural selection cannot act on the trait of leaf morphology. my ...

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by Ryosuke
Fri Nov 18, 2011 7:21 am
 
Forum: Evolution
Topic: Evolution questions
Replies: 1
Views: 5646

Re: The Genie and the Bottle; When a Genotype is not a Genotype

Trait: trait A qualitative characteristic; a discrete attribute as contrasted with metrical character. A trait is amenable to segregation rather than quantitative analysis; it is an attribute of phenotype, not of genotype. Origin: Fr. From L. Tractus, ...

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by Crucible
Sun Oct 23, 2011 9:41 pm
 
Forum: Evolution
Topic: The Genie and the Bottle; When a Genotype is not a Genotype
Replies: 6
Views: 5479

About Physiological Darwinism:From Fitness to Optimality

... different organisms' adaptation levels, in order to solve the issues in quantitative analysis of adaptation. Thus they created the measurable concept ... at gene's carrier (phenotype). And it is not a selection aiming at one trait of the phenotype, but a holistic selection aiming at the phenotype ...

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by wellalt
Thu Nov 12, 2009 11:15 pm
 
Forum: Evolution
Topic: About Physiological Darwinism:From Fitness to Optimality
Replies: 13
Views: 16961

Re:

... over time. Populations evolve, not Individuals. as i said before if a trait appears in population which is not present in its parents population ... Read On the origin of Species if you don't believe me. Many traits are quantitative (under contol of many genes) and thus can change rapidly by ...

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by robsabba
Wed Sep 23, 2009 2:47 pm
 
Forum: Evolution
Topic: New species since humans?
Replies: 34
Views: 14937
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