"The locus is the precise location of a gene on its chromosome. Loci is the plural. Normally, the gene is found at the same position of the same chromosome in all individuals of the same species. The locus is like the house-number on a street - it is where the gene lives."
A list of genetic terms in the link...
Very clear they are.
METAMIA is a free database of analogy and metaphor. Anyone can contribute or search. The subject matter can be anything. Science is popular, but poetry is encouraged. The goal is to integrate our fluid muses with the stark literalism of a relational database. Metamia is like a girdle for your muses, a cognitive girdle.