Home
Class 12
BIOLOGY
One turn of the helix in a B- from DNA i...

One turn of the helix in a B- from DNA is approximately

A

20 nm

B

0.34 nm

C

3.4 nm

D

2 nm

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION -D) (Assertion -Reason Type Questions)|20 Videos

  • MOLECULAR BASIS OF INHERITANCE

    AAKASH INSTITUTE|Exercise ASSIGNMENT (SECTION -B) Objective Type Questions|36 Videos

  • MOCK_TEST_20

    AAKASH INSTITUTE|Exercise EXAMPLE|32 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    AAKASH INSTITUTE|Exercise TRY YOURSELF|38 Videos

Similar Questions

Explore conceptually related problems

One turn of the helix in a B-form DNA is approximately-

One turn of Z-DNA has

Energy required to break one bond in DNA is approximately

If the distance between two consecutive base pairs is 0.34nm and the toal number of base pairs of a DNA double helix in a typical mammalian cell is 6,6xx10^9 bp, then the length of the DNA is approximately

One turn of B-DNA double helix spans a distance of

B-DNA which is right -handed double helix contains ______ base pairs per turn of the helix and each tum is _____ long .

(a) Which of the following forms of DNA are right-handed double helices ? B-DNA, Z-DNA, D-DNA. (b) How many base pairs per turn of the helix are these in the following forms of DNA ? A-DNA, C-DNA and Z-DNA. ( c) What is satellite DNA ?

In double helix of DNA, the two DNA strands are

AAKASH INSTITUTE-MOLECULAR BASIS OF INHERITANCE -ASSIGNMENT (SECTION -C) Previous Years Questions
  1. The two polynucleotide chains in DNA are

    Text Solution

    |

  2. The length of DNA molecile greatly exceeds the dimensions of the nucle...

    Text Solution

    |

  3. One turn of the helix in a B- from DNA is approximately

    Text Solution

    |

  4. Antiparallel strands of a DNA molecule means that :

    Text Solution

    |

  5. Amino acid sequence, in protein synthesis is decided by the sequence o...

    Text Solution

    |

  6. One-gene-one enzyme hypothesis was proposed by :-

    Text Solution

    |

  7. During transcription holoenzyme RNA polymerase binds to a DNA sequence...

    Text Solution

    |

  8. E. colicells with a mutated z gene of the lac operon cannot grow in me...

    Text Solution

    |

  9. Nucleotide are building blocks of nucleic acids.Each nucleotide is a ...

    Text Solution

    |

  10. Which one of the following makes use of RNA as a template to synthesiz...

    Text Solution

    |

  11. Uridine, present only in RNA is

    Text Solution

    |

  12. Which of the following is not a property of the genetic code ?

    Text Solution

    |

  13. One of the most frequently used techniques in DNA fingerprinting i...

    Text Solution

    |

  14. In ans inducible operon, the genes are

    Text Solution

    |

  15. A single strand of nucleic acid tagged with a radioactive molecule is ...

    Text Solution

    |

  16. The reaction, Amino acid + ATP rarr Aminoacyl -MAP+ P-P depicts :

    Text Solution

    |

  17. The transcription of any gene is the indication of its :

    Text Solution

    |

  18. mRNA direct the building of proteins through a sequience of

    Text Solution

    |

  19. Beadle and Tatum showed that each kind of mutant bread mould they stud...

    Text Solution

    |

  20. Which of the following nucleotide sequences contains 4 pyrimidine ba...

    Text Solution

    |