Question

if a purin pairs with purin and pyramidn pairs with piramidin in a DNA molecule ,maximum and minimum number of C-N rings in nucleotide pairs respectively be​

Answer 1

Answer:

Pyrimidine is an aromatic heterocyclic organic compound similar to pyridine.[3] One of the three diazines (six-membered heterocyclics with two nitrogen atoms in the ring), it has the nitrogen atoms at positions 1 and 3 in the ring.[4]:250 The other diazines are pyrazine (nitrogen atoms at the 1 and 4 positions) and pyridazine (nitrogen atoms at the 1 and 2 positions). In nucleic acids, three types of nucleobases are pyrimidine derivatives: cytosine (C), thymine (T), and uracil (U).

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