1. Breed: A dog's breed is determined by its genetic makeup. Different breeds have distinct physical traits, temperaments, and even health predispositions.

2. Coat Color and Pattern: The genes within a dog's DNA dictate its coat color, patterns like spots or stripes, and even the texture of its fur (e.g., smooth, curly, or wiry).

3. Size and Body Structure: The size, shape, and overall structure of a dog's body are largely determined by its genes. Certain breeds are known for their height, weight, and bone structure.

4. Health Predispositions: DNA plays a crucial role in determining a dog's susceptibility to certain health conditions. Some breeds are genetically predisposed to specific diseases like hip dysplasia or eye problems.

5. Temperament and Behavior: While environment and training have an impact, a dog's DNA also influences its general temperament, personality, and behavioral tendencies. Some breeds are known for being more energetic, independent, or affectionate.

6. Senses: A dog's sense of smell, hearing, and sight are influenced by its genetic makeup. Certain breeds have a heightened sense of smell or superior night vision.