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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, a drawing out, extension


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Brain size=IQ level theory (Blacks vs Whites & Asians)

... of Europe I wasn't suggesting that skin color directly effects intelligence. I was suggesting that because skin color, a largely genetic trait, affects how a person is treated, an environmental effect, it will be counted as a genetic influence under the ACE model even though melanin-depositing ...

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by wildfunguy
Wed Jul 30, 2014 8:20 pm
 
Forum: Human Biology
Topic: Brain size=IQ level theory (Blacks vs Whites & Asians)
Replies: 72
Views: 258596

Genetics Pedigree Help Required

Based on the information in the pedigree of Family B, is inheritance of this hearing loss trait consistent with an autosomal dominant or autosomal recessive pattern? (Tip: assume autosomal dominant and assign genotypes of affected and unaffected individuals, then assume ...

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by TheBell
Fri Mar 21, 2014 8:49 pm
 
Forum: Genetics
Topic: Genetics Pedigree Help Required
Replies: 0
Views: 1379

licorice root a stress reliever?

... to cortisol metabolites [...] confirm that licorice impairs normal cortisol metabolism. Loneliness and Cortisol: Momentary, Day-to-day, and Trait Associations (Daone & Adam) https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2841363/ This was contrary to previous work which has shown that ...

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by wildfunguy
Wed Mar 12, 2014 11:09 pm
 
Forum: Human Biology
Topic: licorice root a stress reliever?
Replies: 0
Views: 1395

what is a dominant trait and the recessive trait?

How do you tell what is the dominant trait and the recessive trait in plants?

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by natureandbiology
Wed Mar 12, 2014 5:34 pm
 
Forum: Botany Discussion
Topic: what is a dominant trait and the recessive trait?
Replies: 2
Views: 1351

Re: Why do Africans have large noses and lips?

I don't know the answer to this specific question, but we do know some things about how genes are linked on DNA. Sometimes a trait that is helpful for survival is very closely associated with another trait on the DNA strand. So when natural selection keeps trait A in the gene pool as ...

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by anneland
Sun Mar 09, 2014 6:54 pm
 
Forum: Human Biology
Topic: Why do Africans have large noses and lips?
Replies: 31
Views: 210625
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