Join the Most Relevant JEE Main 2025 Test Series & get 99+ percentile! Join Now
Search any question & find its solution
Question: Answered & Verified by Expert
Which one of the following is an incorrect combination?
BiologyMolecular Basis of InheritanceAIIMSAIIMS 2015
Options:
  • A Adenine, thymine, cytidine
  • B Adenine, cytosine, thymine
  • C Guanine, thymine, uracil
  • D Cytosine, uracil, guanine
Solution:
2138 Upvotes Verified Answer
The correct answer is: Adenine, thymine, cytidine
Adenine (A), guanine (G), cytosine (C), thymine $(T)$ and uracil $(U)$ are all nitrogenous bases, whereas cytidine is a nucleoside i.e., a combination of a nitrogenous base (cytosine) with a pentose sugar (ribose).

Looking for more such questions to practice?

Download the MARKS App - The ultimate prep app for IIT JEE & NEET with chapter-wise PYQs, revision notes, formula sheets, custom tests & much more.