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(B) Nucleic acids are polymers of nucleotides. Each nucleotide consists of a nitrogenous base,a pentose sugar,and a phosphate group.Nitrogenous bases

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Guanine and Adenine

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(B) Nucleic acids are polymers of nucleotides. Each nucleotide consists of a nitrogenous base,a pentose sugar,and a phosphate group.Nitrogenous bases are classified into two types: Purines and Pyrimidines.Purines are double-ring structures,which include Adenine $(A)$ and Guanine $(G)$.Pyrimidines are single-ring structures,which include Cytosine $(C)$,Thymine $(T)$,and Uracil $(U)$.In $DNA$,the purine bases are Adenine and Guanine,while the pyrimidine bases are Cytosine and Thymine.

The purine nitrogen bases in $DNA$ are .....

Similar Questions

The base sequence for a nucleic acid segment is given as $CAG, AGG, CGA, CCA$. From this,it can definitely be concluded that it is a segment of:

The successive nucleotides of $RNA$ are covalently linked through which of the following bonds?

Assertion : In a $DNA$ molecule,$A-T$ rich parts melt before $G-C$ rich parts.
Reason : In between $A$ and $T$ there are three $H-$ bonds,whereas in between $G$ and $C$ there are two $H-$ bonds.

Wilkins' $X$-ray diffraction data of $DNA$ shows the diameter of the $DNA$ helix to be:

In $DNA$,guanine pairs with:

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