1-In mice, the ability to run normally is a dominant trait. Mice with this trait are called running mice (R). The recessive trait causes mice to run in circles and we call these waltzing mice (r). Hair color is also inherited. Black hair (B) is dominant over brown hair (b).
If a mouse is h0m0zygous running and heter0zygous for hair color, its genotype is
______.
