In humans, a congenital eye disease – cataract (C) and one of the forms of anemia – elliptocytosis (E) are inherited linked
In humans, a congenital eye disease – cataract (C) and one of the forms of anemia – elliptocytosis (E) are inherited linked as autosomal dominant signs. What offspring can be expected from the marriage of a diheterozygous man with elliptocytosis and cataract and a healthy woman, provided that: 1) there is no crossing over; 2) does crossing over take place?
1) From the marriage of a man with elliptocytosis and cataract, and a healthy diheterozygous woman, provided that there is no crossing over, healthy children and children with cataracts and elliptocytosis in a 1: 1 ratio can be expected.
2) From the marriage of a man with elliptocytosis and cataract, and a healthy diheterozygous woman, provided that crossing over occurs, healthy children, children with cataracts and elliptocytosis, children with cataracts and children with elliptocytosis in a ratio of 1: 1: 1: 1 can be expected …
