Question

Q2: Suppose there is a dispute on the paternity of Baby Patricia. In question is the paternity, with 4 possible candidates. The blood type of Penny, Patricia’s mother, is B, and baby Patricia is blood type O. The 4 possible fathers are Leonard, Sheldon, Raj, and Howard. Howard’s blood type is AB, whereas both Sheldon and Leonard are A, and Raj is B.

1. What is Penny’s genotype for her blood type? Explain your answer.  (2 pts)

2. Of the 4 possible fathers, who can be ruled out immediately? Explain your answer. (2 pts)

3. Suppose that both of Sheldon’s parents are AB blood type. What would be Sheldon’s genotype for his blood type? Show your Punnett Square work with Sheldon’s parents.  Based on your work, deduce whether Sheldon can be the father of baby Patricia. (2 pts)

4. Suppose Leonard already had a baby with Priya and baby Nidhip’s blood type is also O. Can we conclude whether Leonard is the biological father of baby Patricia based on this information so far? Why or why not? Explain. (3 pts)

5. Based on your answers in (A) to (D), identify who are the remaining possible biological father(s) of baby Patricia. If there are more than one in your pool, provide a suggestion on what to do next to resolve the paternity dispute. (1 pt)

Answer 1