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Dictionary » L » Locus

Locus

Definition

noun, plural: loci

(general) A place, space or locality, especially a centre of an activity.

(mathematics) The set of all points whose coordinates satisfy a given equation or condition.

(genetics) The location of a gene (or of a significant sequence) on a chromosome, as in genetic locus.

(medicine) The site on the body where a pathogen enters.


Supplement

Word origin: Latin stlocus, a place.

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Translating Locus Tags

I'm really lost here. I have the locus tag RP6-88D7.1 from Hemophilia B and I'm supposed to translate it (say what the letters and numbers stand for.) The internet was no help on this matter what so ever... :| Its for a genetics assignment, ...

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by Robie5667
Thu Mar 26, 2009 9:18 pm
 
Forum: Genetics
Topic: Translating Locus Tags
Replies: 0
Views: 276

T4 phage strains

... differing in the alleles at three genes (p, q, and r) were used to simultaneously infect e. coli cells. The following progeny were observed: p locus q locus r locus number p + + 324 + q + 85 p q + 55 p q r 6 + q r 371 + + + 10 + + r 66 p + r 83 a) what are the genotypes of the parental phages ...

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by meesh
Fri Jan 02, 2009 11:26 pm
 
Forum: Genetics
Topic: T4 phage strains
Replies: 2
Views: 561

Relative fitness relationship at equilibrium.

I'm working on this problem for my population genetics class, and I just can't seem to get it. The problem is: In a basic one locus – 2 allele selection model, assume the following fitness set in which the allele A is completely dominant with respect to allele a. What is the relationship ...

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by ghostphish
Fri Oct 31, 2008 10:50 pm
 
Forum: Genetics
Topic: Relative fitness relationship at equilibrium.
Replies: 0
Views: 634

Re: Genetic diversity on squirrels

Try again. I’m assuming the data in the table is the allele frequency for the three alleles of locus 1 and that each column is one taxon—and here I reveal my ignorance of genetic terms because I don’t know for certain what a taxon is and I haven’t bothered to look up the ...

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by blcr11
Fri Sep 12, 2008 4:37 pm
 
Forum: Genetics
Topic: Genetic diversity on squirrels
Replies: 3
Views: 754

Re: Genetic diversity on squirrels

... of analysis for all ten of your loci before answering the question about percentages of polymorphic loci within taxons. The table is only for one locus.

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by blcr11
Fri Sep 12, 2008 1:55 pm
 
Forum: Genetics
Topic: Genetic diversity on squirrels
Replies: 3
Views: 754
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