The differences between a sprint, Olympic, and Ironman distance triathlonsâand how to choose between them. By Madeline Haller, Photography By Getty Images May 22, 2015.
Locus (genetics) A locus (plural loci) in genetics is the position on a chromosome. Each chromosome carries many genes; humans' estimated 'haploid' protein coding genes are 19,000-20,000, on the 23 different chromosomes. A variant of the similar DNA sequence located at a given locus is called an allele.
locus. 1  A place or locality, especially a centre of activity or the scene of a crime. The cafeteria was the locus of activity. ( 2 mathematics) The set of all points whose coordinates satisfy a given equation or condition. A circle is the locus of points from which the distance to the center is a given value, the radius.