Home
Class 12
BIOLOGY
When a plant/animal is infected whit vi...

When a plant/animal is infected whit virus, it may produce an antivirl substance that is capable of inhibiting the multiplication of that virus. Identify the correct name of this substance

A

Virion

B

Antivirtion

C

Antigen

D

Interferon

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • HUMAN HEALTH AND DISEASE

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|13 Videos
  • HUMAN HEALTH AND DISEASE

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|13 Videos
  • HUMAN EVOLUTION

    DINESH PUBLICATION|Exercise Brain Teasers-VII|182 Videos
  • HUMAN REPRODUCTION

    DINESH PUBLICATION|Exercise MCQ|767 Videos

Similar Questions

Explore conceptually related problems

An antiviral substance produced in response to viral infection for restricting its multiplication is

A potato plant is infected with a virus. Name and explein a method to obtain virus-dree potato plants from it.

Solution of a substance X changes its colour to pink when Phenolphthalein is added to it. Solution of another substance Y change its colour to yellow on adding methyl orange as shown in the figure below: Identify the correct nature of solutions of X and Y:

…… is an antivirul substance produced by animals in response to viral infection

X and Y are the two types of organisms which are found in forests. Both types of organisms are considered to be cleansing agents of the forest environment in their own way. The organisms like X eat up the dead animals in the forest whereas the organisms like y break down the dead animals into simple substance which can be re-used for the growth of plants. What is the general name of the organisms like Y?

Name the plant tissue found in the husk of a coconut and also identify the substance which is responsible for its stiffness.

X and Y are the two types of organisms which are found in forests. Both types of organisms are considered to be cleansing agents of the forest environment in their own way. The organisms like X eat up the dead animals in the forest whereas the organisms like y break down the dead animals into simple substance which can be re-used for the growth of plants. What is the general name of organisms like X?

First read a passage and then answer the questions following that passage. Soil scientists have shown that the soil teems with millions of living things, many of them useful, others harmful. The living things which are useful include earthworms and various kinds of bacteria. Earthworms loosen the soil and so enable air and water to enter it. Bacteria, which are microscopic living things break down dead plants and animals and make humus, or take nitrogen from the air and change it into substances that plants use. The living things that do harm include other bacteria and fungi which cause diseases. Other harmful things are pests such as wire worms which feed on the roots of grass and other plants. While the farmer can usually keep weeds in check by careful cultivation, this alone may not protect his crops from insects, pests and diseases. Nowadays, however, he is much better able to control these enemies. He may plant. specially resistant types of seeds or he may keep the pests and diseases in check with chemicals. With better seeds farmers have been able to increase their crop yield . They can grow crops that ripen more quickly and have a stronger resistance to disease, frost or drought. Scientists who study soil believe that

First read a passage and then answer the questions following that passage. Soil scientists have shown that the soil teems with millions of living things, many of them useful, others harmful. The living things which are useful include earthworms and various kinds of bacteria. Earthworms loosen the soil and so enable air and water to enter it. Bacteria, which are microscopic living things break down dead plants and animals and make humus, or take nitrogen from the air and change it into substances that plants use. The living things that do harm include other bacteria and fungi which cause diseases. Other harmful things are pests such as wire worms which feed on the roots of grass and other plants. While the farmer can usually keep weeds in check by careful cultivation, this alone may not protect his crops from insects, pests and diseases. Nowadays, however, he is much better able to control these enemies. He may plant. specially resistant types of seeds or he may keep the pests and diseases in check with chemicals. With better seeds farmers have been able to increase their crop yield . They can grow crops that ripen more quickly and have a stronger resistance to disease, frost or drought. Nowadays it is possible to reduce the loss caused by pests and harmful bacteria

DINESH PUBLICATION-HUMAN HEALTH AND DISEASE-Revision Questions From Competitive Exams
  1. A doctor identifies symptoms of nasal congestion, headach, sore, throa...

    Text Solution

    |

  2. Some of the statements about evnets in the life cycle of Plasomidum ar...

    Text Solution

    |

  3. Identify the icorrect statement from the following

    Text Solution

    |

  4. Short-lived immunity acquired from mother to foetus across placenta or...

    Text Solution

    |

  5. Helper cells are distinguished form cytotoxic T-cells by the presence ...

    Text Solution

    |

  6. Which one of the following statge of malarial parasite is not found in...

    Text Solution

    |

  7. The vector of Wuchereria is

    Text Solution

    |

  8. A change in a want or mole on the skin is observed in

    Text Solution

    |

  9. Which of the following is not the symptom of malaria

    Text Solution

    |

  10. Which of the following statements is not true for cancer cells in rela...

    Text Solution

    |

  11. Antivenom injection contains preformed antibodies while polio drops th...

    Text Solution

    |

  12. In higher vertebrates, the immune system can distinguish self-cells an...

    Text Solution

    |

  13. Which of the following is correct regarding AIDS causative agent HIV

    Text Solution

    |

  14. Cornea transplant in humans is almost never rejected.This is because

    Text Solution

    |

  15. Assertion : IgM is a type of immunoglobulin which cannot cross the pla...

    Text Solution

    |

  16. When a plant/animal is infected whit virus, it may produce an antivir...

    Text Solution

    |

  17. Name the wrom causing the disease

    Text Solution

    |

  18. Choose organism not releated to condition shown here

    Text Solution

    |

  19. MALT constitutes about-percent of the lymphiod tissue in human body

    Text Solution

    |

  20. Transplantation of tissues/organs to save certain patients often fails...

    Text Solution

    |