Question: In humans, the gene for a free earlobe [E] is dominant over the gene for an attached earlobe [e]. If one parent has a free earlobe [ Ee ] and the other parent has an attached earlobe ( ee ), what is the probability that their offspring will have an attached earlobe?

  Options: 
 A. 0%
 B. 25%
 C. 50%
 D. 100% 
Answer: C