Question

what is a linkage map?
a detailed genetic analysis of genetic diseases
a way to show how the order that traits could be linked on a chromosome
a tool for all - genetic diseases

Explanation:

A linkage map is a diagram that shows the relative positions of genes on a chromosome. It is based on the frequency of recombination between genes during meiosis. It helps in understanding the order and relative distances between genes on a chromosome.

Answer:

A detailed genetic rendering of genes on a chromosome