Question

locus stands for position of alleles within a DNA molecule or position of genes on homologous chromosomes​

Answer 1

Answer:

In genetics, a locus (plural loci) is a specific, fixed position on a chromosome where a particular gene or genetic marker is located. ... Gene mapping is the process of determining the specific locus or loci responsible for producing a particular phenotype or biological trait.

Answer 2

Answer:

I think B is most correct

Explanation:

because position of gene on homologous chromosomes is called locus of that particular allele

Hope this answer help u