- Joined
- May 30, 2006
- Messages
- 347
- Reaction score
- 11
Both male and female are normal vision. Both fathers are color blind. So, what's the prob that their 1st child will be normal boy?
My answer is 50% since boy gets X (normal X or disease X) from mom and normal Y from dad. So, there must be 2 chances. X^cY or XY.
I don't understand why it comes with 25%.
Much Much Much appreciate your input!!!!
My answer is 50% since boy gets X (normal X or disease X) from mom and normal Y from dad. So, there must be 2 chances. X^cY or XY.
I don't understand why it comes with 25%.
Much Much Much appreciate your input!!!!