Home
Class 12
BIOLOGY
A mutant strain to T4-Bacteriophage, R-I...

A mutant strain to `T_4`-Bacteriophage, R-II, fails to lyse the E.coli but when two strains R-`II^x` and R-`II^y` are mixed then they lye the E.coli. What may be the possible reason :

A

Bacteriophage transformed in wild

B

It is not mutated

C

Both strains have similar cistrons

D

Both strains have different cistrons

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • MINERAL NUTRITION

    MBD PUBLICATION|Exercise Question Bank|75 Videos

  • MORPHOLOGY OF FLOWERING PLANTS

    MBD PUBLICATION|Exercise QUESTION BANK|186 Videos

Similar Questions

Explore conceptually related problems

The following curve is obtained when molar conductivity, Lambda_(m) is plotted against the square root of concentration . C^(1//2) along y and x - axis, respectively for the two electrolytes X and Y. (i) What can you say about the nature of these two electrolytes? (ii) Account for the increase in Lambda_(m) for the electrolytes X and Y with dilution. (iii) Determine Lambda_(m)^(oo) for these electrolytes.

What is the derivative of e^(3logx) w.r.t.x?

On the basis of Arrhenius equation, consider the following statement(s). I. E_a is activation energy. II. Unit of E_a is "J mol"^(-1) III. R is gas constant. Which of these is/are true statement(s)?

Match column I with column II with respect to the nomenclature of restriction enzyme EcoRl and select the correct answer from the given codes. {:(Column I,Column II),(A.E,(i)1^(st)"in order of identification"),(B.co,(ii)"Name of genus"),(C.R,(iii)"Name of species"),(D.l,(iv)"Name of strain"):} (a) A-(iii),B-(i),C-(ii),D-(iv) (b) A-(ii),B-(i),C-(iii),D-(iv) (c) A-(i),B-(ii),C-(iii),D-(iv) (d) A-(ii),B-(iii),C-(iv),D-(i)

A random variable X has the following probability distribution Determine (i) R (ii) P(X lt 2) (iii) P(X ge 4) (iv) P(2 le X le 5)

MBD PUBLICATION-MOLECULAR BASIS OF INHERITANCE-QUESTION BANK
  1. E.coil about to replicate was placed in a medium containing radioactiv...

    Text Solution

    |

  2. Read the following statements and choose the correct option. (a) Ni...

    Text Solution

    |

  3. A mutant strain to T4-Bacteriophage, R-II, fails to lyse the E.coli bu...

    Text Solution

    |

  4. m-RNA is synthesised on DNA in template in which direction :

    Text Solution

    |

  5. Type of RNA polymerase requried in nucleus for RNA synthesis in enkary...

    Text Solution

    |

  6. Gene and cistron words are sometimes used synonymously because:

    Text Solution

    |

  7. HIV has a protein coat and a genetic material which is:

    Text Solution

    |

  8. Largest bacterial plasmid has kilobases:

    Text Solution

    |

  9. Cauliflower mosaic virus has :

    Text Solution

    |

  10. DNA polymerase that helps in DNA replication is of :

    Text Solution

    |

  11. In recent years , DNA sequence (nucleotide sequence ) of mt-DNA and Y ...

    Text Solution

    |

  12. Genetic Map is one that :

    Text Solution

    |

  13. The linkage map of X- chromosomes of fruitfly has 66 units with yellow...

    Text Solution

    |

  14. In lac operon the genes a , y and z code respectively for

    Text Solution

    |

  15. Down's syndrome is caused by an extra copy of chromosome number 21. w...

    Text Solution

    |

  16. During translation initiation in prokaryotes a GTP molecule is neede...

    Text Solution

    |

  17. The place where RNA - polymerase attaches with the DNA is called :

    Text Solution

    |

  18. The total number of nitrogenous bases in human genome is estimated to ...

    Text Solution

    |

  19. Which of the following pairs is correctly matched with regard to the c...

    Text Solution

    |

  20. DNA repairing is done by :

    Text Solution

    |