Question

Free earlobes are dominant over attached earlobes in humans. Grace is Ee for earlobes. She marries Mark, who is ee for earlobes. What is the probability that their son will have attached earlobes?
A.)50%
B.)25%
C.)75%
D.)100%

Answer 1

B) 25 %,
free earlobes are dominant so they are more likely, this meaning that attached is less likely, so the only thing not 50% or above is 25%