no chance one in four two in four three in four
I am hesitating between 4 options to answer the following question, which option should I choose?
Question: Sickle cell anemia is a genetic disease caused by an autosomal recessive gene. If each parent carries one sickle cell allele, what are the chances that their child will have sickle cell anemia?
Possibilities:
- no chance
- one in four
- two in four
- three in four

one in four