TLS Online TPP Program

#Question id: 985


 In the pyrimidine ring system, what is the source of the carbons 4,5 and 6 during the de novo biosynthesis of pyrimidines?

#Unit 1. Molecules and their Interaction Relevant to Biology
  1. glutamine   

  2. aspartate

  3. 3 bicarbonate ions 

  4. pyruvate