Home
Class 12
BIOLOGY
(A]: Rabies is an acute infectious disea...

(A]: Rabies is an acute infectious disease of mammals affecting CNS to cause paralysis and death.
[R]: This is caused due to neurotropic filterable bacteria in saliva of rabis animals.

A

If both assertion and reason are true and reason is the correct explanation of assertion

B

If both assertion and reason are true but reason is not the correct explanation of assertion

C

If assertion is true but reason is false

D

If both assertion and reson are false.

Text Solution

Verified by Experts

The correct Answer is:
C

Rabies (hydrophobia) is an acute viral disease of the central nervous system that affects all warm-blooded animals and is usually transmitted to humans by a bite from an infected dog. Symptoms appear after an incubation period ranging from 10 days to over a year and include malaise, fever, difficulty in breathing, salivation, periods of intense excitement, and painful muscle spasms of the throat induced by swallowing. In the later stages of the disease, the mere sight of water induces convulsions and paralysis, death occurs within 4-5 days.
Promotional Banner

Similar Questions

Explore conceptually related problems

(A]: Rabies is an acute infectious disease of mammals affecting CNS to cause paralysis and death. [R]: This is caused due to neurotropic filter- able bacteria in saliva of rabid animals.

Major cause of death among non-infectious disease is :-

Among non-infectious diseases, the major cause of death is.

Name the infectious disease which causes wasting of body parts. Give the scientific name of the pathogen and mention the body organs it primarily affects.

Given below is the name of diseases. Classify it according to the pathogens (microorganisms) that cause it. Rabies

Assertion : Inspite of exposure to large number of infectious agents humans are resistive to diseases. Reason : Humans are able to defend against most of the foreign agents due to the ability to fight disease-causing organisms.

[A]: Erythroblastosis foetalis is a disease related with Rh factor and may cause death of foetus in the mother. [R]: It causes massive destruction of foetal RBCs that leads to anaemia and tissue damage of foetus.

Given below is a crossword puzzle. Read the clues across and clues down, and fill up the blank squares. Clues down 1. Germs or germ - substances introduced into the body to prevent occurrence of an infectious disease. 2. A disease caused by an infected dog that affects the central nervous system. 3. A disease in which the eyes, the skin and the urine turn yellow. 4. The disease pertussis is popularly known as whooping ....... Clues across 1. Category of pathogen that causes diseases like common cold and mumps. 5. This is the vaccine for preventing tuberculosis. 6. An organ usually affected by tuberculosis. 7. Jumbled spelling of one of the most common insect which visits our exposed foods and contaminates them. 8. Cover this part of your body by a handkerchief while sneezing to prevent droplet infection to others. 9. These may readily grow in your hair, if you do not wash it regularly. 10. A disease that weakens body's defence system against infections.

[A] : Viruses are causative organisms of measles and rabies . [R] : They are connecting link between living and nonliving .

I . William Harvey disappproved the 'good humour' hypothesis of health. II. Health can be defined as a state of complete physical, mental and social well-being. III. Among non-infectious diseases, cancer is the major cause of death. IV. Many genera like Microsporum, Trichophyton, and Epidermophyton are reponsible for ringworms which is one of the most common infectious diseases in man. How many of the given statements are incorrect?