The Adenosine deaminase deficiency results into

Correct answer: 2)

Concept:

• When DNA is broken down, it forms deoxyadenosine which is toxic to our lymphocytes.
• Adenosine deaminase is an enzyme that removes deoxyadenosine and converts it into deoxyinosine, which is not harmful.

Explanation:

• Option 1: Addison’s disease is caused due to hyposecretion of cortisol or aldosterone from the adrenal glands.
• Option 2:
• Dysfunction of the immune system is caused by adenosine deaminase enzyme deficiency.
• It causes a disease known as severe combined immunodeficiency (SCID).
• An individual loses its immunity against all bacteria, viruses, and fungi.
• Option 3:
• Parkinson’s disease is a disorder of the nervous system that is caused due to very low dopamine levels.
• Nerve cells are damaged, and people will often suffer from tremors.
• Option 4:
• The digestive disorder is a disorder that affects the alimentary canal from the mouth to the anus.
• Celiac disease, irritable bowel syndrome, and acid reflux are all examples of digestive disorders.

So, the correct answer is option 2.