Answer:
Explanation:
Adenine is a compound which is one of the four constituent bases of nucleic acids. A purine derivative, it is paired with thymine in double-stranded DNA.
Guanine is a compound that occurs in guano and fish scales, and is one of the four constituent bases of nucleic acids. A purine derivative, it is paired with cytosine in double-stranded DNA.
Cytosine is a compound found in living tissue as a constituent base of nucleic acids. It is paired with guanine in double-stranded DNA.
Thymine is a compound which is one of the four constituent bases of nucleic acids. A pyrimidine derivative, it is paired with adenine in double-stranded DNA.
