Answer
Verified
397.2k+ views
Hint: DNA is a nucleic acid made up of two strands having a sugar phosphate backbone each. This sugar phosphate backbone holds the nucleotides perpendicular to the backbone. The sugar phosphate backbone is made up of alternating phosphate groups and a Deoxyribose sugar.
Complete answer:
-DNA stands for Deoxyribonucleic acid, as it is a nucleic acid made up of Deoxyribose sugar that lacks an –OH group at C2' position unlike a ribose sugar seen in RNA (Ribonucleic acid).
-The sugar is called Deoxyribose as it lacks an oxygen atom at the C2' position. The absence of this oxygen helps the enzymes distinguish DNA from RNA thus making possible the sequence specific recognition of DNA by enzymes and different proteins.
Figure 1: Nucleic acid structure
Additional information:
Apart from the sugar the DNA can be distinguished from RNA based on the nucleotides present, that is, DNA has four basic units called Adenine, Guanine, Cytosine, and Thymine. But in RNA the Thymine is replaced by Uracil, making it a distinguishing feature among DNA and RNA.
Note:
Nucleic acids are the large biomolecules that make up the hereditary material in an organism. It is basically made up of three substances: Sugar molecule (ribose or Deoxyribose), phosphoric acid, and a base (purines and pyrimidines). When a base binds to the sugar molecules it forms a nucleoside. This nucleoside then binds with phosphoric acid to form a nucleotide. Hence, a nucleic acid is known as a long chain polymer of nucleotides.
Complete answer:
-DNA stands for Deoxyribonucleic acid, as it is a nucleic acid made up of Deoxyribose sugar that lacks an –OH group at C2' position unlike a ribose sugar seen in RNA (Ribonucleic acid).
-The sugar is called Deoxyribose as it lacks an oxygen atom at the C2' position. The absence of this oxygen helps the enzymes distinguish DNA from RNA thus making possible the sequence specific recognition of DNA by enzymes and different proteins.
Figure 1: Nucleic acid structure
Additional information:
Apart from the sugar the DNA can be distinguished from RNA based on the nucleotides present, that is, DNA has four basic units called Adenine, Guanine, Cytosine, and Thymine. But in RNA the Thymine is replaced by Uracil, making it a distinguishing feature among DNA and RNA.
Note:
Nucleic acids are the large biomolecules that make up the hereditary material in an organism. It is basically made up of three substances: Sugar molecule (ribose or Deoxyribose), phosphoric acid, and a base (purines and pyrimidines). When a base binds to the sugar molecules it forms a nucleoside. This nucleoside then binds with phosphoric acid to form a nucleotide. Hence, a nucleic acid is known as a long chain polymer of nucleotides.
Recently Updated Pages
Basicity of sulphurous acid and sulphuric acid are
What is the stopping potential when the metal with class 12 physics JEE_Main
The momentum of a photon is 2 times 10 16gm cmsec Its class 12 physics JEE_Main
Using the following information to help you answer class 12 chemistry CBSE
Which of the following would not be a valid reason class 11 biology CBSE
Why should electric field lines never cross each other class 12 physics CBSE
Trending doubts
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Write an application to the principal requesting five class 10 english CBSE
Difference Between Plant Cell and Animal Cell
a Tabulate the differences in the characteristics of class 12 chemistry CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
What organs are located on the left side of your body class 11 biology CBSE
Discuss what these phrases mean to you A a yellow wood class 9 english CBSE
List some examples of Rabi and Kharif crops class 8 biology CBSE