1. In mice, black fur (B) is dominant to white fur (b). If a particular male with black fur is crossed with a female with white fur, the resulting offspring are 50% black fur and 50% white fur. A. What is the genotype of the father?
B. What is the genotype of the mother?

Which of the following is an advantage of using embryonic stem cells in medical research? a. the use of embryonic stem cells is much less expensive than the use of adult stem cells. o b. no living tissue is damaged when scientists use embryonic stem cells. o c. embryonic stem cells are able to differentiate into a wider range of cells than adult stem cells. d. there is no controversy surrounding the use of embryonic stem cells.