Home
Class 12
BIOLOGY
If Meselson and Stahl's experiment is co...

If Meselson and Stahl's experiment is continued for four generations in bacteria, the ratio of `overset(15)N//overset(15)N: overset(15)N//overset(14):overset(14)//overset(14)N` containing DNA in the fourth generation would be

A

`0:1:3`

B

`0:1:7`

C

`1:1:0`

D

`1:4:0`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • GENE EXPRESSION AND REGULATION

    GRB PUBLICATION|Exercise NCERT Corner(Exemplar Problems)|46 Videos

  • ENVIRONMENTAL ISSUES

    GRB PUBLICATION|Exercise Assertion & Reason Type Questions|30 Videos

  • Human Evolution

    GRB PUBLICATION|Exercise Assertion-Reason Type Questions|86 Videos

Similar Questions

Explore conceptually related problems

If Meselson and Stahl's experiment is continued for four generations in bacteria, the ratio of overset(15)N//overset(15)N: overset(15)N//overset(14)N:overset(14)N//overset(14)N containing DNA in the fourth generation would be

If Meselson and Stahl's experiment is continued for sixth generations in bacteria, the ratio of Heavy strands ""^(15)N//""^(15)N : Hybrid ""^(15)N//""^(14)N : light ""^(14)N//""^(14)N containing DNA in the sixth generation would be

What is the value of [overset(4)/5divoverset(5)/8-overset(7)/5+overset(15)/2" of "(overset(2)/3divoverset(4)/5)] ?

In meselson and Stahl's experiment, heavy isotope ""^(15)N was used in the from of

If the vectors 3overset(^)i+overset(^)j-5overset(^)k and aoverset(^)i+boverset(^)j-15overset(^)k are collinear, if

The formed charge of the O-atoms in the ion [:overset(..)N=overset(..)O:] is .

Write monomer unit of [--overset(O)overset(||)C-(CH_(2))_(5)-overset(H)overset(|)N--] polymer.

What is the formal charge on the nitrogen atom in HNO_(3) ? H-overset(..)underset(..)O-overset(":"overset(..)O":")overset(|)N=overset(..)underset(..)O

GRB PUBLICATION-GENE EXPRESSION AND REGULATION-NCERT Corner(Exemplar Problems)
  1. While analysing the DNA of an organism a total number of 5386 nucleoti...

    Text Solution

    |

  2. In some viruses, DNA is synthesised by using RNA as template . Such a ...

    Text Solution

    |

  3. If Meselson and Stahl's experiment is continued for four generations i...

    Text Solution

    |

  4. If the sequence of nitrogen bases of the coding strand of DNA in a tra...

    Text Solution

    |

  5. The RNA polymerase holoenzyme transcribes

    Text Solution

    |

  6. If the base sequence of a codon in mRNA is 5'-AUG-3', the sequence of ...

    Text Solution

    |

  7. The amino acid attaches to the tRNA at its

    Text Solution

    |

  8. To initiate translation, the mRNA first binds to

    Text Solution

    |

  9. In E. coli, the lac operon gets switched on when

    Text Solution

    |

  10. A diagrammatic representation of the central dogma in molecular biolog...

    Text Solution

    |

  11. Diagrammatic view of a dinucleotide is given below. Identify A,B and D...

    Text Solution

    |

  12. Read the following five statements (A to E) about nucleic acids and se...

    Text Solution

    |

  13. Diagram of a nucleosome is given below. Identify A, B and C by selecti...

    Text Solution

    |

  14. Which one of the following statements is wrong ?

    Text Solution

    |

  15. Schematic structure of a transcription uit is given below. Select the ...

    Text Solution

    |

  16. A diagrammatic view the Hershey-Chase experiment is given below. Ident...

    Text Solution

    |

  17. Watson-Crick model for DNA replication is given below. Identify the mo...

    Text Solution

    |

  18. Consider the following statements : A. RNA has evolved from DNA with...

    Text Solution

    |

  19. The following diagram shows the lac Operon in the absence of inducer: ...

    Text Solution

    |

  20. Identify the molecule shown below :

    Text Solution

    |