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प्रश्न
Write the important structural differences between DNA and RNA.
उत्तर
| DNA | RNA |
| The sugar moiety in DNA molecules is β-D-2 deoxyribose. | The sugar moiety in RNA molecules is β-D-ribose. |
| DNA contains thymine (T). It does not contain uracil (U). | RNA contains uracil (U). It does not contain thymine (T). |
| The helical structure of DNA is double-stranded. | The helical structure of RNA is single-stranded. |
| DNA molecules are very large. | RNA molecules are much smaller. |
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संबंधित प्रश्न
Write the structure of a nucleoside
Which of the following NOT present in DNA?
(a) adenine
(b) Guanine
(c) Thymine
(d) Uracil
What type of linkage is present in nucleic acids?
Name the base that is found in nucleotide of RNA only.
In both DNA and RNA, heterocyclic base and phosphate ester linkages are at ____________.
Which base is present in RNA, but not in DNA?
Nucleic acids are the polymers of ______.
DNA and RNA contain four bases each. Which of the following bases is not present in RNA?
Which of the following bases is not present in DNA?
Aldopentoses named as ribose and 2-deoxyribose are found in nucleic acids. What is their relative configuration?
Which of the following is not a protein?
Which of the following contributes to the double helical structure of DNA?
Which of the following statements is not true about RNA?
Write two differences between DNA and RNA.
Mention two important functions of nucleic acids.
Assertion (A): The backbone of DNA and RNA molecules is a chain consisting of heterocyclic base, pentose sugar and phosphate group.
Reason (R): Nucleotides and nucleosides mainly differ from each other in the presence of phosphate group.
State the functions of RNA and DNA.
