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प्रश्न
In a nucleus, the number of ribonucleoside triphosphates is 10 times the number of deoxy x10 ribonucleoside triphosphates, but only deoxy ribonucleotides are added during the DNA replication. Suggest a mechanism.
उत्तर
DNA polymerase is highly specific to recognise only deoxy ribonucleoside triphosphates. Therefore it cannot hold RNA nucleotides.
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संबंधित प्रश्न
Discontinuous synthesis of DNA occurs in one strand, because ______.
An enzyme that joins the ends of two strands of nucleic acid is a ______.
Select the correct match of enzyme with its related function.
The enzyme DNA dependent RNA polymerase catalyses the polymerisation reaction in ______ direction.
Read the following and answer from given below:
The process of copying genetic information from the template strand of DNA into RNA is called transcription. It is mediated by RNA polymerase. Transcription takes place in the nucleus of eukaryotic cells. In transcription, only a segment of DNA and only one of the strands is copied into RNA.
Which enzyme helps in tailing or polyadenylation?
ATP synthesis, in photosynthesis involves the:
Feedback inhibition of enzymes is affected by ______.
Which enzyme joins the discontinuously synthesized fragments of the new DNA strand?
The enzyme DNA polymerase in E.coli is a DNA dependent polymerase and also has the ability to proof-read the DNA strand being synthesised. Explain. Discuss the dual polymerase.
During DNA replication, why is it that the entire molecule does not open in one go? Explain replication fork. What are the two functions that the monomers (dNTPs) play?
