Concept explainers
(a)
Interpretation:
Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions in the ring.
Purine: it is heterocyclic
Concept introduction:
Cytosine is one of the four bases found in . The structure of cytosine is
To determine: Cytosine is a pyrimidine or a purine
(b)
Interpretation:
Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions in the ring.
Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.
Concept introduction:
Adenine is one of the two purine nucleases with structural formula is .
To determine: Adenine is a pyrimidine or a purine
(c)
Interpretation:
Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions in the ring.
Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.
Concept introduction:
Uracil is one of the four nucleases in the nucleic of that are represented by the letters .
The structure formula of Uracil is
To determine:
Uracil is a pyrimidine or purine.
(d)
Interpretation:
Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions in the ring.
Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.
Concept interdiction:
Thymine is one of the four nucleobases in the
The structure of thymine is as follows.
To determine:
Thymine is pyrimidine or purine.
(e)
Interpretation:
Pyrimidine: It is an aromatic heterocyclic organic compound which has nitrogen atoms at positions in the ring.
Purine: it is heterocyclic aromatic organic compound that consists of an imidazole ring.
Concept introduction:
Guanine is one of the four main nucleobases found in the nucleic acid. The structure of guanine is as follows.
To determine:
Guanine is pyrimidine or purine.
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