What is the difference between an allele and a locus?Group of answer choicesThey have no difference.An allele is the position of a gene on a chromosome while a locus is an alternative form of a gene.An allele is an alternative form of a gene while a locus is the position of a gene on a chromosome.None of the above

The correct answer is: An allele is an alternative form of a gene while a locus is the position of a gene on a chromosome.

Here's why:

1. An allele is a variant form of a gene. Each gene resides at a specific locus (location on a chromosome). In many cases, genes can exist in several different forms with small differences in their sequence of DNA bases. These different versions of the same gene are called alleles.

2. A locus (plural loci) refers to the position of a gene or a marker (an identifiable physical location) on a chromosome. This term is sometimes used more broadly to describe regions of DNA that are associated with a particular trait.

So, in summary, a locus refers to a location on a chromosome where a gene is found, and an allele is a variant form of that gene.