Question

Adenine, pentose sugar and single phosphate combine to form
A) Adenosine
B) Adenylic acid
C) Adenosine diphosphate
D) Adenosine triphosphate

Answer 1

Hint:DNA and RNA are the genetic material and made up of monomers. The nucleotides come together and make the polynucleotides. These polynucleotides are present in DNA and RNA as the monomers.

Complete answer:
>Nucleotides have the three components:-nitrogenous base, pentose sugar and phosphate.
>Nucleotide is made up by the phosphorylation of the nucleoside because it only consists of sugar and nitrogenous base.
>Nucleotides are acidic in pH.
>Nucleotides contain mainly two types of sugar: ribose or deoxyribose.
>The phosphate is available in the form of phosphoric acid.
>Purine is nine membered double rings while pyrimidines is six membered with single ring structure and these known as the nitrogenous bases
>These nitrogenous bases are joined by glycosidic bonds with sugar molecules.
>In RNA Adenylic acid is present which is formed by a combination of adenine, ribose sugar and phosphate. Adenylic acid is a nucleotide present in RNA
>RNA as the genetic material present in some of the virus.

Hence the correct answer is option ‘B’.

Additional information:
There are three types of RNA:- present tRNA, mRNA, And rRNA.
1) tRNA = transfer RNA
2) mRNA = Messenger RNA
3) rRNA = Ribosomal RNA

Note:RNA is long, unbranched and most importantly not like DNA it is a single stranded polymer of nucleotides. These all types of RNA play a very important role for protein synthesis.