#Question id: 971
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the source of the nitrogen atoms 3 and 9 during the de novo biosynthesis of purines?
#Question id: 972
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the source of the carbon atoms 2 and 8 during de novo biosynthesis of purines?
#Question id: 973
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the source of the atoms 5 and 7 during de novo biosynthesis of purines?
#Question id: 974
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the source of the N-1 atom during de novo biosynthesis of purines?
#Question id: 975
#Unit 1. Molecules and their Interaction Relevant to Biology
What is the source of the C-6 atom during de novo biosynthesis of purines?
#Question id: 976
#Unit 1. Molecules and their Interaction Relevant to Biology
Which amino acid is not directly involved in the de novo biosynthesis of purines?