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Q: The two tautomeric forms of cytosine?
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What are the two tautomeric forms of cytosine?

The amino and inimo forms are the two tautomers of cytosine. The differ due to resonsnce around the double bond between C1 and N in the ring and C1 and N in the side chain. The amino and inimo forms are the two tautomers of cytosine. The differ due to resonsnce around the double bond between C1 and N in the ring and C1 and N in the side chain.


What in DNA always forms bonds with guanine?

cytosine (C).


What bases forms a true complementary pair?

cytosine and guanine


What G stands for in RNA?

Guanine. It forms a triple hydrogen bond with Cytosine.


What are the 4 nucleotide bases and which pair with which?

A nucleotide consists of three parts: * A Sugar (Deoxyribose) * A Phosphate Group * A Nitrogen-containing base Base Pairing Rules A&T (Adenine&Thymine) C&G (Cytosine&Guanine)


The two pyrimidines are composed of?

thymine and cytosine


Which type of isomerism show shifting of proton also give suitable example?

Tautomeric isomerism shows the shifting of a proton. This occurs when a compound can rapidly interconvert between two forms by moving a proton. For example, the keto-enol tautomeric isomerism of cyclohexane-1,3-dione, which can exist as both a keto form and an enol form by interchanging the positions of the hydrogen atom and the double bond.


Can base c ever pair with t?

Cytosine should not ever pair with thymine, for two major reasons: Cytosine and thymine are both pyrimidines, meaning they contain a single sugar, whereas adenine and guanine are purine and contain a two-ringed sugar. If cytosine were to pair with thymine (or another cytosine) it would throw off the shape of the DNA double helix. Cytosine wants to form three hydrogen bonds, and thymine can only form two. Thus, under normal circumstances, cytosine will never be paired with thymine.


What forms a base pair with guanine?

Usually cytosine although other combinations, infrequently seen, are possible.


What 2 bases that belongs to the pyrimidines group?

The two Purines are: Adenine and Guanine (A and G) The two Pyrimidines are: Cytosine and Thymine (C and T)


What two bases are Pyrimidines?

Thymine and Cytosine :)


What are the names of the four nitrogen bases that make up part of DNA?

A (adenine), T (thymine), C (cytosine), and G (guanine). A, T, G, C. But there are five. U is the other one. It's found in RNA, not DNA, and is probably not one of the four you're after.