Question

The nucleic acid base having two possible binding sites is
A) Thymine
B) Cytosine
C) Guanine
D) Adenine

Answer 1

Hint: We realize that Nucleic acids are biopolymers, or huge bimolecular, fundamental for all known types of life. They are made out of nucleotides, which are the monomers made of three parts: a five-carbon sugar, a phosphate bunch and a nitrogenous base. The two principal classes of nucleic acids are deoxyribonucleic corrosive and ribonucleic corrosive. On the off chance that the sugar is ribose, the polymer is RNA; if the sugar is the ribose subsidiary deoxyribose, the polymer is DNA.

Complete answer:
We can draw the structure of Guanine is,

Guanine is one of the four primary nucleobases found in the nucleic acids DNA and RNA, the others being adenine, cytosine, and thymine. In DNA, guanine is combined with cytosine. The guanine nucleoside is called guanosine.
With the equation \[{C_5}{H_5}{N_5}O\] , guanine is a subordinate of purine, consisting of an intertwined pyrimidine-imidazole ring framework with formed twofold bonds. This unsaturated course of action implies the bicyclic atom is planar. Hence option C is correct.

Note:
We have to know that the nucleic acids are normally happening substances that fill in as the essential data conveying atoms in cells and cosmetics the hereditary material. We know that Nucleic acids are found in every single living thing, where they make, encode, and afterward store data of each living cell of each living thing on Earth. Thus, their capacity to communicate and communicate that data inside and outside the cell core to the inside activities of the cell and at last to the up and coming age of each living creature. The encoded data is contained and passed on through the nucleic corrosive arrangement, which gives the 'stepping stool step' requesting of nucleotides inside the particles of RNA and DNA. They assume a particularly significant part in coordinating protein union.