Adenine most closely resembles Guanine.
cytosine
cytosine
In nucleic acids, the base that pairs with guanine is cytosine.
In DNA, the nitrogen base adenine (A) pairs with the nitrogen base thymine (T), and the nitrogen base cytosine (C) pairs with the nitrogen base guanine (G). So the base pairs are A:T and C:G. One way to remember is that A:T spells the word "at."
In DNA, adenine pairs with thymine, and guanine pairs with cytosine. In RNA, adenine pairs with uracil, and guanine pairs with cytosine.
Thymine and cytosine are two nitrogen bases found in DNA. DNA is composed of thousands of nucleotides which are composed of one of four nitrogen bases. Both of these nitrogen bases are also pyrimidines, or they have one ring like structure See related link for more info on thymine, cytosine and pyrimidines.
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Cytosine
Guanine
Cytosine, a pyrimidine (sugar) base, pairs with Guanine, a purine (nitrogen) base.
cytosine
In nucleic acids, the base that pairs with guanine is cytosine.
The nitrogen bases for DNA are adenine, guanine, cytosine, and thymine
pyrimidines
Adenine and Thymine Gaumine and Cytosine
The nitrogen base that is sometimes referred to as C is cytosine. It is a compound found in living tissue as a constituent base of nucleic acids.
The nitrogen bases of DNA are adenine, guanine, cytosine, and thymine.
There are four nitrogenous bases found in RNA: adenine, guanine, cytosine, or uracil. Adenine and guanine are known as purine bases while cytosine and uracil are known as pyrimidine bases