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प्रश्न
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?
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उत्तर
Further polymerisation would not occur, as the 3’ OH on sugar is not there to add a new nucleotide for forming ester bond.
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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 ______.
If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it?
In some viruses, RNA is present instead of DNA indicating that ______.
A nucleoside differs from a nucleotide. It lacks the ______.
Both deoxyribose and ribose belong to a class of sugars called ______.
Who amongst the following scientists had no contribution in the development of the double helix model for the structure of DNA?
Protein helping in opening of DNA double helix in front of replications fork is ______.
Synthesis of DNA from RNA is explained by ______.
By which bonds the purine and pyrimidine pairs of Complementary Strands of DNA held together?
DNA is made of two chains that twist about one another in the shape of a ______.
Which ratio is constant for DNA?
Which of the following is a structural subunit of DNA?
A peptide chain assumes secondary structure through the formation of ______.
In the polynucleotide chain of DNA, a nitrogenous base is linked to the -OH of ______
Retroviruses do not follow central Dogma. Comment.
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?
