Solve the problem using the ideas of genetics and laws of Mendelian inheritance of Cyctic Fibrosis.
A rare receding allele inherited in a Mendelian manner, reasons the disease Cystic Fibrosis. Suppose a man who is phenotypically normal as well as whose mother was normal but his father had cystic fibrosis, marries a woman who is as well phenotypically normal. The parents of the woman are both normal. They are worried that their children may inherit this disorder and decide to come to you their genetic counsellor. You sit down to describe to them that there may be cause for concern liable on their actual genotypes. Utilizing one or more Punnett squares show all possible scenarios to this couple based on what you know about each of them as well as their parents