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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Re: Locus specificity and ERVs - Q from a creationist

... locations in order to perform their functions. Unless we are talking about LTR promoters of native genes, this does seem to be the case. Re. locus targeting, see http://erv-faq-for-creationists.wikispaces.com/Don%27t+retroviruses+target+particular+locations+in+the+DNA%3F+Doesn%27t+this+explain+corresponding+ERVs%3F

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by BarryDesborough
Sat Aug 30, 2014 8:00 am
 
Forum: Genetics
Topic: Locus specificity and ERVs - Q from a creationist
Replies: 5
Views: 2095

Re: Locus specificity and ERVs - Q from a creationist

The reasoning fails if the adaptive functions do not depend on their exact loci. I don't really understand your reasoning. However, retroviruses are the major players and drivers of evolution. When they insert into host genome, they can alter host genes located at and around the insertion point - t...

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by Cat
Sun Sep 15, 2013 4:08 pm
 
Forum: Genetics
Topic: Locus specificity and ERVs - Q from a creationist
Replies: 5
Views: 2095

Locus specificity and ERVs - Q from a creationist

A question for geneticists - How essential is it that a gene or other section of DNA that performs a useful function is at a particular locus? I ask, because I am discussing endogenous retroviruses (ERVs) with an evolution-denier, who says that the ERVs that are apparently orthologous in, ...

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by BarryDesborough
Sat Sep 07, 2013 2:49 pm
 
Forum: Genetics
Topic: Locus specificity and ERVs - Q from a creationist
Replies: 5
Views: 2095

Population genetics - make inferences from allele frequency

And assume that a locus is biallelic (2 alleles).

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by Young
Sun Aug 25, 2013 11:36 pm
 
Forum: Genetics
Topic: Population genetics - make inferences from allele frequency
Replies: 1
Views: 1330

ecological genomics: Microsallites & allele frequency

... In fact, my microsatellites data show some correlations with environmental variables. As you can see a table below, there are 19 alleles at this locus. Two alleles among them showed a significant correlations with an environmental variable(i.e. Allele 3 and Allele 7: texts in red colour). Values ...

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by Young
Tue Jul 23, 2013 5:30 am
 
Forum: Genetics
Topic: ecological genomics: Microsallites & allele frequency
Replies: 0
Views: 836
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