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I both DNA and RNA, heterocyclic base an...

I both DNA and RNA, heterocyclic base and phosphate ester linkages are at

A

`C_(5)'" and " C_(2)'` respectively of the sugar molecule

B

`C_(2)'" and " C_(5)'` respectively of the sugar molecule.

C

`C_(1)'" and " C_(5)'` respectively of the sugar molecule.

D

`C_(5)'" and " C_(1)'` respectively of the sugar molecule

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The correct Answer is:
C
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AAKASH SERIES-BIOMOLECULES-EXERCISE - II (Nucleic acids)
  1. The pyrimidine bases present in DNA are

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  2. In nucleic acids, the sequence is represented as

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  3. I both DNA and RNA, heterocyclic base and phosphate ester linkages are...

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  4. Number of aminoacids present in one turn of alpha helix is

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  5. The ratio of number of A+G to the number of C+T in DNA of E. Coli spec...

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  6. Number of C = O groups in thymine and in X are equal. Now, X is

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  7. The sugar unit present in the nucleotides of RNA is

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  8. In the nucleotide namely adenosine-5'-tri phosphate, the sequence of l...

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  9. Incorrect relationship regarding all types of living species is

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  10. The reason for double helical structure of DNA is the operation of:

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  11. The ratio of the number of ketonic groups in cytosine, thymine and ura...

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  12. In nucleosides, both base and sugar are joined by

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  13. The number of hydrogen bonds present in the sequence of a stretch of a...

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  14. Two samples of DNA, A and B have melting points 340K and 350 K respect...

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  15. Which one of the following sequence of groups in AMP ?

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  16. The process in which strands of melted DNA hybridise on cooling is kno...

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  17. Insulin has two polypeptide chains. These polypeptide chains are held ...

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  18. Which one of the following statement is incorrect regarding the protei...

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  19. Through this experiment Avery, Macleod and Mc Carty had showed that DN...

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  20. The ratio of phosphates, sugars and nitrogen bases in ds-DNA

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