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प्रश्न
DNA and RNA contain four bases each. Which of the following bases is not present in RNA?
विकल्प
Adenine
Uracil
Thymine
Cytosine
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उत्तर
Thymine
Explanation:
DNA contains four bases adenine, guanine, thymine and cytosine. While RNA contains four bases adenine, uracil, guanine and cytosine. Thus, RNA does not contain thymine.
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संबंधित प्रश्न
Write the structure of a nucleoside
Write the structure of a nucleotide
What type of linkage is present in nucleic acids?
Define the following term:
Nucleotide
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 ______.
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?
Write the structures of fragments produced on complete hydrolysis of DNA. How are they linked in DNA molecule? Draw a diagram to show pairing of nucleotide bases in double helix of DNA.
Which of the following is not a protein?
Purine derivative among the following bases is ______.
Which of the following statements is not true about RNA?
Write two differences between DNA and RNA.
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.
