Question

pedigree charts use shaded symbols to show organisms that have a particular tr traced in the chart. a breeder wants to make a pedigree chart of several generati males that have a defective gene. what symbol would the horse breeder use to s defective gene? shaded circle shaded square unshaded circle unshaded square

Explanation:

In pedigree charts, squares represent males, circles represent females. Shaded symbols indicate the presence of the trait (here, the defective gene), while unshaded symbols mean the trait is absent. Since we need to represent males with the defective gene, we use a shaded square.

Answer:

shaded square