Assertion (A): The gene for adenosine deaminase (ADA) is crucial for the digestive system to function.
Reason (R): ADA deficiency is caused by the deletion of the gene for adenosine deaminase.
Assertion (A): The gene for adenosine deaminase (ADA) is crucial for the digestive system to function.
Reason (R): ADA deficiency is caused by the deletion of the gene for adenosine deaminase.