Home
Class 12
CHEMISTRY
Which of the following is correct about ...

Which of the following is correct about H-bonding in nucleotide?

A

`A-T, G-C`

B

`A-G, T-C`

C

`G-T, A-C`

D

`A-A, T-T`

Text Solution

Verified by Experts

The correct Answer is:
A
Adenine pairs with thymine with 2 hydrogen bonds. Guanine pairs with cytosine with 3 hydrogen bonds. Guanine and cytosine bonded base pairs are stronger than thymine and adenine bonded base pairs in DNA.
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER 05

    EDUCART PUBLICATION|Exercise SECTION-C|6 Videos

  • SAMPLE PAPER 05

    EDUCART PUBLICATION|Exercise SECTION-C|6 Videos

  • SAMPLE PAPER 04

    EDUCART PUBLICATION|Exercise SECTION C|6 Videos

  • SAMPLE PAPER 06

    EDUCART PUBLICATION|Exercise SECTION-C|6 Videos
EDUCART PUBLICATION-SAMPLE PAPER 05-SECTION-B
  1. Number of monochloro derivatives obtained when neo-pentane chlorinated

    Text Solution

    |

  2. Ammonia compound which upon heating does not give ammonia is:

    Text Solution

    |

  3. Which of the following is correct about H-bonding in nucleotide?

    Text Solution

    |

  4. The alcohol which does not react with Lucas reagent is:

    Text Solution

    |

  5. The boiling points of hydrides of group 16 are in the order

    Text Solution

    |

  6. A binary solid(A^(+) B^(-)) has a zinc blende stracture with B ions co...

    Text Solution

    |

  7. Which among the following forms a linear polymeric structure due to hy...

    Text Solution

    |

  8. The unit of ebullioscopic constant is

    Text Solution

    |

  9. In the given reaction : A, B, C and D respectively are:

    Text Solution

    |

  10. Which of the following is most reactive towards S(N)1 reaction?

    Text Solution

    |

  11. What will be the ratio of the total volume of bcc to simple cubic stru...

    Text Solution

    |

  12. Nitrogen is used to fill electric bulb because:

    Text Solution

    |

  13. The reagent that is used to convert phenol into benzene is:

    Text Solution

    |

  14. IUPAC name of the compund CH3-underset(CH3)underset(|)"CH"-OCH3is

    Text Solution

    |

  15. The correct order of Delta(i) H(1) values is:

    Text Solution

    |

  16. What happens when 1-Propanol in the presence of HBF4 reacts with diazo...

    Text Solution

    |

  17. Halogenation, sulphonation, Friedel-Craft's reaction of haloarenes is ...

    Text Solution

    |

  18. Assertion (A): The reducing nature of hydrides of group 16 varies in t...

    Text Solution

    |

  19. Assertion (A) Hydrolysis of (-)-2-bromooctane proceeds with inversion ...

    Text Solution

    |

  20. Assertion (A): Soft drinks are seated under high pressure to increase ...

    Text Solution

    |