When heterozygous black short-haired dogs were crossed with brown long-haired homozygotes, 39 black

When heterozygous black short-haired dogs were crossed with brown long-haired homozygotes, 39 black short-haired puppies, 40 brown short-haired puppies, 42 black long-haired, 38 brown long-haired puppies were obtained. How are these two pairs of traits inherited? What percentage will crossover puppies be?

These pairs of traits are inherited independently of each other. Crossover puppies are brown short-haired and black long-haired puppies. crossing over occurred and crossover gametes were formed. Calculate the percentage of crossover puppies: ((40 + 42) / (40 + 42 + 39 + 40)) * 100% = 51%