[Q]: Two brothers went to take a blood test. Ned had sickle cell anemia, while Ted didn't have that disease. Their mother took Ned to a specialist. Which brother had a blood protein called hemoglobin produced incorrectly?
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[A]: Ned

[Q]: Two twin brothers live far away from each other. Dan lives in the Norther Hemisphere, in North America, and Bill lives in Tasmania, in the Southern Hemisphere.They often talk about the weather, the seasons, and how it affects them. Which brother experiences colder weather in August?
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[A]: Bill

[Q]: Two college students both had unprotected sex with different partners. Ben got the HIV virus, while Nate was lucky and was not infected with any diseases. Which student had a greater chance of reaching an average human life span?
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[A]: Nate

[Q]: Mike and John are brothers. Their dad sent them to the doctor's office to get tested for hepatitis because Mike was feeling sick all the time. It turned out Mike has hepatitis B, while John doesn't. Which brother has a smaller chance of getting liver cancer?
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[A]:
John