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प्रश्न
A nucleoside differs from a nucleotide. It lacks the ______.
विकल्प
phosphate group
hydroxyl group
sugar
base
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उत्तर
A nucleoside differs from a nucleotide. It lacks the phosphate group.
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संबंधित प्रश्न
Group the following as nitrogenous bases and nucleosides:
Adenine, Cytidine, Thymine, Guanosine, Uracil and Cytosine.
Both deoxyribose and ribose belong to a class of sugars called ______.
There is no DNA in ______.
______ occurs in RNA instead of the nitrogenous base thymine found in 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?
In a polynucleotide chain, nucleotides are linked together by which type of bond?
The backbone of a polynucleotide chain is formed by which components?
In a DNA double helix, what is the spatial relationship between the two polynucleotide strands?
In a DNA double helix, where are the nitrogenous bases located?
A dinucleotide is formed by linking two nucleotides together. The bond formed between them is:
Pyrimidines differ from purines in their basic structural feature. Which statement is correct?
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:
Pyrimidines differ from purines in their basic structural feature. Which statement is correct?
