Home
Class 12
BIOLOGY
Which of the following is not relevant t...

Which of the following is not relevant to the structure of double helical DNA ?

A

The diameter of the helix is 20A

B

The distance between adjacent nucleotide is `3.4A`

C

The helix makes one complete sprial turn every `34A`

D

Each strand of helix has a backbone make up of alternating ribose sugar and phosphate

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • THE GENETIC MATERIAL

    GRB PUBLICATION|Exercise DNA REPLICATION|136 Videos

  • THE GENETIC MATERIAL

    GRB PUBLICATION|Exercise DNA REPLICATION|136 Videos

  • SEXUAL REPRODUCTION IN FLOWERING PLANTS

    GRB PUBLICATION|Exercise NCERT Corner|23 Videos

  • TRANSCRIPTION AND TRANSLATION

    GRB PUBLICATION|Exercise TRANSLATION|124 Videos

Similar Questions

Explore conceptually related problems

Which of the following does not confer stability to the helical structure of DNA ?

Which of the following is not a salient features of the Double-helix structure of DNA

Which of the following is not a salient features of the Double-helix structure of DNA

Which of the following is not a salient features of the Double-helix structure of DNA

Which of the following feature provide stability to helical structure of DNA?

Which of the following contributes to the double helical structure of DNA

GRB PUBLICATION-THE GENETIC MATERIAL-DNA
  1. Condensation product of adenine, ribose and phosphoric acid is named a...

    Text Solution

    |

  2. A short length of DNA molecule has 80 thymine and 80 guanine bases. Th...

    Text Solution

    |

  3. Which of the following is not relevant to the structure of double heli...

    Text Solution

    |

  4. If a length of DNA has 45,000 base pairs, how many complete turns will...

    Text Solution

    |

  5. Statements : A. The four nucleotide bases are not necessarily presen...

    Text Solution

    |

  6. The successive nucleotides of DNA are covalently linked through :

    Text Solution

    |

  7. The carbon atoms of the pentose sugar involved in phosphodiester bond ...

    Text Solution

    |

  8. In DNA the two chains of double helix run opposite to each other. This...

    Text Solution

    |

  9. The two polynucleotide chains in DNA are :

    Text Solution

    |

  10. Antiparallel strands of a DNA molecule means that :

    Text Solution

    |

  11. DNA strands are antiparallel because of the presence of :

    Text Solution

    |

  12. A nitrogenous base is linked to the pentose sugar through :

    Text Solution

    |

  13. Phosphodiester bond is present in :

    Text Solution

    |

  14. In the double -helical structure of DNA, the pitch of the helix is :

    Text Solution

    |

  15. The four nitrogen base sequence which form the code words for DNA lang...

    Text Solution

    |

  16. The chemical name of cytosine is :

    Text Solution

    |

  17. Which are purines ?

    Text Solution

    |

  18. Which of the following pairs is not correctly matched ?

    Text Solution

    |

  19. The following diagrams represent the nitrogenous bases of nucleic acid...

    Text Solution

    |

  20. In a DNA double helix :

    Text Solution

    |