1. Tardigrade
  2. Question
  3. Biology
  4. The given diagram is of adenine. What group should be present in the spot marked X? <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/b-nkyywqtu3pqaolp6.jpg />

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. The given diagram is of adenine. What group should be present in the spot marked X?
Question

NTA AbhyasNTA Abhyas 2022

Solution:

Adenine is a nitrogen base present in nucleic acids. This belongs to the purine group. Purine groups are nitrogen bases with two rings. A four-membered ring is attached to a six-membered ring. Purines are guanine and adenine and these are present in both DNA's and RNA's. The main difference between adenine and guanine is that guanine shows an extra = O group. Both the nitrogen bases have $-N H_{2}$ groups but present on different carbon atoms. Thus the 'x' in the figure represents the amino group. Adenine is called as 6-amino purine.