Home
Class 12
BIOLOGY
Assertion: The Widal test is commonly us...

Assertion: The Widal test is commonly used for the detection of typhoid fever.
Reason: The presence of specific agglutinins in the patient's blood indicates the presence of typhoid bacteria.

A

If both Assertion and Reason are true and the reason is the correct explanation of the assertion, then mark (1).

B

If both Assertin and Reason are true but the reason is not the correct explanation of the assertion, then mark (20.

C

If Assertion is true but Reason is false, then mark (3).

D

If both Assertion and Reason are false. Then mark (4).

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • HUMAN HEALTH AND DISEASE

    CENGAGE BIOLOGY|Exercise ARCHIVES|45 Videos
  • EVOLUTION

    CENGAGE BIOLOGY|Exercise Archives|38 Videos
  • HUMAN REPRODUCTION

    CENGAGE BIOLOGY|Exercise Assertion -Reasoning Question|12 Videos

Similar Questions

Explore conceptually related problems

Layer test is used to detect the presence of

In Lassaigne's test, a blood red colouration with Fe^(3+) ions indicates the presence of

The presence of nutrients in the food can be tested. Benedict's test is used to detect

Malaria can be detected by testing the blood for the presence of

The borax bead test can be used to detect the presence of

Assertion: ELISA is widely used for the detection of infectious diseases like AIDS. Reason: ELISA is very sensitive and selective test and needs very small amount of reagents.

Assertion (A): After the first sexual intercourse, the Hymen breaks up. Reason (B): The presence of an intact hymen is an indicator of virginity.

CENGAGE BIOLOGY-HUMAN HEALTH AND DISEASE-ARCHIVES
  1. Assertion: The Widal test is commonly used for the detection of typhoi...

    Text Solution

    |

  2. Increased asthmatic attacks in certain seasons are related to

    Text Solution

    |

  3. Ultrasound of how much frequency is beamed into human body for sonogra...

    Text Solution

    |

  4. If you suspect major deficiency of antibodies in a person, to which o...

    Text Solution

    |

  5. Which one of the following is correct statement regarding the particul...

    Text Solution

    |

  6. Consider the following statements about biomedical technologies, (i)...

    Text Solution

    |

  7. To which type of barriers under innate immunity, do the saliva in the ...

    Text Solution

    |

  8. Wuchereria is found in

    Text Solution

    |

  9. Use of anti-histamines and steroids give a quick relief from -

    Text Solution

    |

  10. Which one of the following statement is correct ?

    Text Solution

    |

  11. The letter "T" in T-lymphocyte refers to

    Text Solution

    |

  12. Which of the following is a pair of viral diseases

    Text Solution

    |

  13. A person likely to develop tetanus is immunized by administering or ...

    Text Solution

    |

  14. Which one of the following statements is correct with respect to AIDS?

    Text Solution

    |

  15. Select the correct statement from the ones given below

    Text Solution

    |

  16. A certain patient is suspected to be suffering from Acquired Immuno De...

    Text Solution

    |

  17. Which one of the following acts as a physiological barrier to the entr...

    Text Solution

    |

  18. Which one of the following is categorised as a parasite in true sense

    Text Solution

    |

  19. At which stage of HIV infection does one usually show symptoms of AIDS

    Text Solution

    |

  20. Where will you look for the sporozoites of malarial parasite ?

    Text Solution

    |

  21. Which one of the following is not a property of cancerous cells wherea...

    Text Solution

    |