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प्रश्न
DNA and RNA contain four bases each. Which of the following bases is not present in RNA?
पर्याय
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
What are three types of RNA molecules which perform different functions?
What type of linkage is present in nucleic acids?
Give balanced equations for the following reactions:
Name the nitrogen base residues present in DNA
Name the base that is found in nucleotide of RNA only.
Which one of them is not a protein?
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?
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 contributes to the double helical structure of DNA?
Write the important structural differences between DNA and RNA.
Which of the following statements is not true about RNA?
Write two differences between DNA and RNA.
Mention two important functions of nucleic acids.
Give a reason for the following observations:
The two strands in DNA are complementary to each other.
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.
What products would be formed when a nucleotide from DNA containing thymine is hydrolysed?
