In sheep, white wool is dominant over spotted wool. if 10 purebred white wool sheep (tt) are crossed with 10 spotted wool sheep (tt), how many offspring will have spotted wool? a.)10 b.)5 c.)4 d.)0

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.