Home
Class 12
BIOLOGY
Assertion (A) : Streptomycin is an antib...

Assertion (A) : Streptomycin is an antibiotic
Reason (R) : Antibiotics are microbial products inhibits the growth of pathogenic microbe.

A

A is right R is wrong.

B

R explains A.

C

A and R are wrong

D

A and R are right . R cannot explain A .

Text Solution

Verified by Experts

b
Promotional Banner

Topper's Solved these Questions

  • MICROBES IN HUMAN WELFARE

    FULL MARKS|Exercise Additional Questions (2- Mark Questions)|41 Videos
  • MICROBES IN HUMAN WELFARE

    FULL MARKS|Exercise Additional Questions (3- Mark Questions)|19 Videos
  • MICROBES IN HUMAN WELFARE

    FULL MARKS|Exercise Higher Order Thinking Skill (HOTs) Questions|4 Videos
  • HUMAN REPRODUCTION

    FULL MARKS|Exercise Higher Order Thinking Skills (HOTs) Questions|4 Videos
  • MOLECULAR GENETICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (HIGHER ORDER THINKING SKILLS (HOTs) QUESTIONS)|5 Videos

Similar Questions

Explore conceptually related problems

Assertion (A): Penicillin is an antibiotic extracted from Penicillium notatum. Reason (R): It can kill (or) inhibits the growth of the other micro organism.

Assertion (A) : Pituitarygland is an endocrine gland Reason (R) : It is not a master gland

Assertion (A) : Heart wood is the dead part of wood . Reason (R ) : It resists microorganisims

Assertion (A): Gibberellin is a bolting hormone. Reason (R): Gibberellin induces parthenocarpy in fruits.

Assertion:(A): Paratope is the antigen -binding site Reason(R ): It is a part of antibody

Assertion (A) : Wood floats in water. Reason(R) : Water is a transparent liquid.

Assertion (A) : Cytokinins induce parthenocrapy. Reason (R) : They insulin cell division.

Assertion (A) : Insulin is known as Humulin Reason (R) : It is also known as diabetic insipidus

Assertion (A) : Sterilization helps to overcome microbes. Reason (R ) : Explants are autoclaved.

Assertion (A) : Soil is the weathered superficial layer of the Earth Reason (R) : Soil serves as the natural medium for the growth of plants.

FULL MARKS-MICROBES IN HUMAN WELFARE -Additional Questions ( 1 - Marks Questions)
  1. Identify the name and the formula of industrial alcohol.

    Text Solution

    |

  2. Pick the bacterial species which is not used in ethanol formation.

    Text Solution

    |

  3. Match the Microbes with the respective organic acids {:("Microbes",...

    Text Solution

    |

  4. Human insulin is being commercially produced from a transgenic species...

    Text Solution

    |

  5. Select the correct statement from the following.

    Text Solution

    |

  6. Oil strains in laundry can be removed using.... .......... ..............

    Text Solution

    |

  7. Find the odd sentence out. (i) Biogas primarily consists of methane...

    Text Solution

    |

  8. Match with correct pair {:((a)"Biofertilizer",(i)"Bacillus thuringie...

    Text Solution

    |

  9. Name the genus of virus which are used as effective Biocontrol agent.

    Text Solution

    |

  10. Assertion : Probiotics are compounds in food which induce activity of ...

    Text Solution

    |

  11. Statement 1 : Saccharomyces cerevisiae is commonly called as Baker 's ...

    Text Solution

    |

  12. The flavour in the yogurt is due to ……….

    Text Solution

    |

  13. Assertion (A) : Streptomycin is an antibiotic Reason (R) : Antibioti...

    Text Solution

    |

  14. Assertion (A) : Oenology delas with study of wine and its preparation....

    Text Solution

    |

  15. In primary sewage treatement , the floating debris are removed by …..

    Text Solution

    |

  16. (i) The Yamuna action plane is a bilateral project. (ii) Biogas plan...

    Text Solution

    |

  17. Select the correct option denoting the proper sequence of sewage tratm...

    Text Solution

    |

  18. The Ganga action plan was launched on ……….. .

    Text Solution

    |

  19. Which of the following plant species is the most suitable oilseed for ...

    Text Solution

    |

  20. Match the following medicinal products with their microbial source . ...

    Text Solution

    |