Your aunt moves out of the town and leaves you her mouse, Henry. In order to make some money, you decide to breed mouse and sell the offspring. In looking over Henry's family history, you discover that Henry's grandfather expressed a rare genetic disorder which leads to brittle bones. This disorder is hereditary and is regulated by recessive allele b. Based on this information, you realize that there is a possibility that Henry could be heterogeneous for the allele. If this is the case, the genetic condition may passed to his offspring.
1) What method could you use to determine if Henry is heterogeneous and carries the recessive allele b?
2) Using the method you described in Q1, determine the expected phenotype and genotypes of all individuals if Henry is heterogeneous or if he is homozygous dominant.