In positional cloning, the researcher begins with a phenotype. to move toward identification of its dna sequence, she must begin with what step?

Respuesta :

underV
Answer: Gene mapping.

Gene mapping is a method used to identify the locus of genes and the distances between them. It's basically a map for genes.
Gene mapping is usually the first step in cloning, then the researcher will try identify the DNA sequence responsible for that phenotype.