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In a nucleus, the number of RNA nucleosi...

In a nucleus, the number of RNA nucleoside triphosphates is 10 times more than the number of DNA nucleoside triphosphates, still only DNA nucleotides are added during the DNA replication, and not the RNAnucleotides. Why?

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DNA polymerase is highly specific to recognise only deoxy ribonucleoside triphosphates. Therefore it cannot hold RNA nucleotides.
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OSWAAL PUBLICATION-MOLECULAR BASIS OF INHERITANCE -TOPIC-2: Multiple Choice Questions
  1. In a nucleus, the number of RNA nucleoside triphosphates is 10 times m...

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  2. In a DNA strand the nucleotides are linked together by :

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  3. A nucleoside differs from a nucleotide . It lacks the :

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  4. Both deoxyribose and ribose belong to a class of sugars called :

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  5. The fact that a purine base always paired through hydrogen bonds with ...

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  6. The net electric charge on DNA and histones is :

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  7. The promoter site and the terminator site for transcription are locate...

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  8. Which of the following statements is the most appropriate for sickle c...

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  9. One of the following is true with respect to AUG:

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  10. The first genetic material could be:

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  11. With regard to mature mRNA in eukaryotes :

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  12. The human chromosome with the highest and least number of genes in the...

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  13. Who amongst the following scientists had no contribution in the develo...

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  14. DNA is a polymer of nucleotides which are linked to each other by 3-5'...

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  15. Discontinuous synthesis of DNA occurs in one strand, because :

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  16. Which of the following steps in transcription is catalysed by RNA poly...

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  17. Control of gene expression takes place at the level of:

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  18. Regulatory proteins are the accessory proteins that interact with RNA ...

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  19. Which was the last human chromosome to be completely sequenced?

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  20. Which of the following are the functions of RNA?

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  21. While analysing the DNA of an organism a total number of 5386 nucleoti...

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