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Guanine is one of the five main nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, thymine, and uracil. With the formula C5H5N5O, guanine is a derivative of purine, consisting of a fused pyrimidine-imidazole ring system with conjugated double bonds. Being unsaturated, the bicyclic molecule is planar. The guanine nucleoside is called guanosine.

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Which bases does Guanine always bond with to form a pair in DNA?

In a DNA molecule cytosine always pairs with guanine, the same is true for an RNA molecule.


Why cant thymine and guanine pair?

Thymine and guanine cannot pair because they do not form complementary base pairs in DNA. In DNA, adenine pairs with thymine and guanine pairs with cytosine due to hydrogen bonding properties. Thus, thymine and guanine are not complementary bases and cannot form a stable base pair.


Which DNA base always pair with cytosine?

Guanine


What two purines are in DNA?

The two purines found in DNA are adenine (A) and guanine (G). They are nitrogenous bases that pair with thymine (in the case of adenine) and cytosine (in the case of guanine) to form the base pairs in the DNA double helix.


What does cytosine-guanine mean?

Cytosine and guanine are two of the four nucleotide bases that make up DNA. They are complementary bases that form a base pair, with cytosine always pairing with guanine. This base pairing is essential for the structure and function of DNA.


Is thymine a DNA base pair?

It is not a DNA base pair itself, it is a DNA nucleotide base. It does however, form a base pair when bonded with adenine.


What does cytosine always pair with?

Cytosine always pairs with guanine in DNA through hydrogen bonding, forming a stable base pair. This complementary base pairing is a key feature in the double-stranded structure of DNA.


With what does guanine pair in DNA?

Guanine pairs with cytosine in DNA.


DNA Which base pair up together?

Guanine-Cytosine and Adenine-Thymine


What base does adenine pair up with in the DNA?

Thymine, and Cytosine matches with Guanine


What attaches to cytosine?

Guanine attaches to cytosine through hydrogen bonding to form a base pair in DNA.


What is the base pair rule for DNA?

In DNA the base pairs are Adenine with Thymine and Guanine with Cytosine. In RNA Thymine is replaced by Uracil so the base pairs are Adenine with Uracil and Guanine with Cytosine.