Question

what is one benefit of mapping the human genome?
locating the chromosomal abnormalities that cause disease
having the genomes of every living individual on file
choosing the gender or intellectual ability of an unborn child
cloning the individuals that comprise a nearly extinct tribe

Explanation:

Mapping the human genome helps in identifying chromosomal abnormalities related to diseases. Storing every individual's genome on - file is not a practical or ethical benefit. Choosing traits of an unborn child and cloning are controversial and not main benefits of genome - mapping.

Answer:

locating the chromosomal abnormalities that cause disease