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प्रश्न
Group the following as nitrogenous bases and nucleosides:
Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
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उत्तर
Nitrogenous bases: Adenine, Thymine, Uracil and Cytosine.
Nucleosides: Cytidine and Guanosine.
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संबंधित प्रश्न
Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.
One turn of DNA possesses ______.
In some viruses, RNA is present instead of DNA indicating that ______.
Who amongst the following scientists had no contribution in the development of the double helix model for the structure of DNA?
How far is each base pair from the next one in DNA double helix model?
Synthesis of DNA from RNA is explained by ______.
If 30 percent of an organism’s DNA is thymine, then ______.
By which bonds the purine and pyrimidine pairs of Complementary Strands of DNA held together?
There is no DNA in ______.
DNA is made of two chains that twist about one another in the shape of a ______.
______ occurs in RNA instead of the nitrogenous base thymine found in DNA.
Which of the following is a structural subunit of DNA?
Which of the following is a purine?
Retroviruses do not follow central Dogma. Comment.
During in vitro synthesis of DNA, a researcher used 2’, 3’ – dideoxy cytidine triphosphate as raw nucleotide in place of 2’-deoxy cytidine. What would be the consequence?
A short piece of DNA, having 20 base pairs, was analyzed to find the number of nucleotide bases in each of the polynucleotide strands. Some of the results are shown in the table.
| Number of nucleotide bases | ||||
| Adenine | Cytosine | Guanine | Thymine | |
| Strand 1 | 4 | 4 | ||
| Strand 2 | 5 | |||
How many nucleotides containing Adenine were present in strand 2?
Which of the following nitrogenous bases is classified as a purine with a double-ring structure?
What type of bond connects a nitrogenous base to the pentose sugar in a nucleotide?
The 3′ end of a polynucleotide chain is characterized by the presence of:
Which of the following nitrogenous bases is classified as a purine with a double-ring structure?
In a polynucleotide chain, nucleotides are linked together by which type of bond?
The 3′ end of a polynucleotide chain is characterized by the presence of:
The backbone of a polynucleotide chain is formed by which components?
What is the significance of the 2′-OH group in ribose compared to deoxyribose?
