Home
Class 12
BIOLOGY
The immune system of a person is suppres...

The immune system of a person is suppressed. In the ELISA test, he was found positive to a pathogen.
What is the causative organism ?

Text Solution

Verified by Experts

Causative agent is Human Immuno deficiency Virus (HIV).
Promotional Banner

Topper's Solved these Questions

  • HUMAN HEALTH AND DISEASE

    KUMAR PRAKASHAN|Exercise Section -E (Solution of NCERT Exemplar) (Short Answer Type Questions)|25 Videos

  • HUMAN HEALTH AND DISEASE

    KUMAR PRAKASHAN|Exercise Section -E (Solution of NCERT Exemplar) (Long Answer Type Questions)|8 Videos

  • HUMAN HEALTH AND DISEASE

    KUMAR PRAKASHAN|Exercise Section -E (Solution of NCERT Exemplar) ( Multiple Choice Questions (MCQs))|23 Videos

  • EVOLUTION

    KUMAR PRAKASHAN|Exercise SECTION - F (Multiple Choice Questions)|198 Videos

  • HUMAN REPRODUCTION

    KUMAR PRAKASHAN|Exercise SECTION-F MULTIPLE CHOICE QUESTIONS|118 Videos

Similar Questions

Explore conceptually related problems

Figure shows an equiconvex lens (of refractive index 1.50) in contact with a liquid layer on top of a plane mirror. A small needle with its tip on the principal axis is moved along the axis until its inverted image is found at the position of the needle. The distance of the needle from the lens is measured to be 45.0 cm. The liquid is removed and the experiment is repeated. The new distance is measured to be 30.0 cm. What is the refractive index of the liquid ?

What is the need for a system of control and coordination in an organism ?

Consider one mole of perfect gas in a cylinder of unit cross section with a piston attached as shown in figure. A spring (spring constant k) is attached (unstretched length L ) to the piston and to the bottom of the cylinder. Initially the spring is unstretched and the gas is in equilibrium. A certain amount of heat Q is supplied to the gas causing an increase of value from V_0 to V_1 . (a) What is the initial pressure of the system ? (b) What is the final pressure of the system ? (c) Using the first law of thermodynamics, write down a relation between Q, P_a , V, V_0 and k.

Assertion : Principle of vaccination is based on the property of 'memory' of the immune system. Reason : In vaccination a preparation of antigenic protein of pathogens or inactivated/ weakened pathogen are introduced into the body.

A laboratory blood test is 99% effective in detecting a certain disease when it is in fact, present. However, the test also yields a false positive result for 0.5% of the healthy person tested (i.e. if a healthy person is tested, then, with probability 0.005, the test will imply he has the disease). If 0.1 percent of the population actually has the disease, what is the probability that a person has the disease given that his test result is positive ?

KUMAR PRAKASHAN-HUMAN HEALTH AND DISEASE -Section -E (Solution of NCERT Exemplar) (Very Short Answer Type Questions (VSQs))
  1. Certain pathogens are tissue/organ specific. Justify the statement wit...

    Text Solution

    |

  2. The immune system of a person is suppressed. In the ELISA test, he was...

    Text Solution

    |

  3. The immune system of a person is suppressed. In the ELISA test, he was...

    Text Solution

    |

  4. The immune system of a person is suppressed. In the ELISA test, he was...

    Text Solution

    |

  5. Where are B-cells and T-cells formed ? How do they differ from each ot...

    Text Solution

    |

  6. Given below are the pairs of pathogens and the diseases caused by them...

    Text Solution

    |

  7. What would happen to immune system, if thymus gland is removed from th...

    Text Solution

    |

  8. Many microbial pathogens enter the gut of humans along with food. What...

    Text Solution

    |

  9. Why is mother's milk considered the most appropriate food for a new bo...

    Text Solution

    |

  10. What are interferons ? How do interferons check infection of new cells...

    Text Solution

    |

  11. In the figure, structure of an antibody molecule is shown. Name the pa...

    Text Solution

    |

  12. If a regular dose of drug or alcohol is not provided to an addicted pe...

    Text Solution

    |

  13. Why is it that during changing weather, one is advised to avoid closed...

    Text Solution

    |

  14. Sickle cell anemia has not been eliminated from the African population...

    Text Solution

    |

  15. Name the primary and secondary lymphoid organs .

    Text Solution

    |

  16. Why is an antibody molecule represented as H2 L2 ?

    Text Solution

    |

  17. What does the term memory of the Immune system mean?

    Text Solution

    |

  18. If a patient is advised Anti Retroviral Therapy, which infection is he...

    Text Solution

    |