Tag: diseases and immunity

Questions Related to diseases and immunity

The process of attenuation was demonstrated by 

zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

  1. Koch

  2. Pasteur

  3. Edward Jenner

  4. None of the above

Show answer
Correct Option: C
Explanation:

Attenuation is a process of injecting dead or weakened organisms of a particular disease into a healthy individual. So, as to create an active immunity against the infection. This was 1$^{st}$ demonstrated by Edward Jenner by administering cow pox virus (non fatal disease) to prevent small pox (fatal viral disease) infection.

So, the correct answer is 'Edward Jenner'

Safe and effective means of producing artificial immunity against small pox by vaccine was first discovered by

zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

  1. Edward Jenner

  2. Haffkine

  3. Dr. Salk

  4. L. Pasteur

Show answer
Correct Option: A
Explanation:
  • A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins.
  • Smallpox vaccine was discovered by Edward Jenner. It was the first successful vaccine ever to be developed and remains the only effective preventive treatment for the fatal smallpox disease.
  • Hence Safe and effective means of producing artificial immunity against smallpox by the vaccine was first discovered by Edward Jenner.
  • So, the correct answer is 'Edward Jenner'.

First DPT dose be given when the baby is 

zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

  1. Six weeks old

  2. Fourteen weeks old

  3. Nine months old

  4. 2-5 years old

Show answer
Correct Option: A
Explanation:

DPT is a vaccine that stands for diphtheria, pertussis and tetanus. As a general rule for all newly born children, it is essential to give the first dose of DPT at the age of 6 weeks. DPT vaccine provides immunization against diphtheria, pertussis (whooping cough) and tetanus.

So, the correct option is 'Six weeks old'.

Vaccines are

zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

  1. treated bacteria or viruses or one of their proteins

  2. MHC proteins

  3. the same as monoclonal antibodies

  4. all of the above

Show answer
Correct Option: A
Explanation:

A vaccine is a biological preparation that provides active acquired immunity to a particular disease. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins. 


So, the correct option is 'Option A'.

At present, animal cell culture technology is extensively used for the production of 

zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

  1. Chylomicrons

  2. Antibiotics

  3. Vaccines

  4. Edible proteins

Show answer
Correct Option: C
Explanation:

The animal cell lines are cultured in the laboratory on the artificial media which requires a specific temperature. Biological products produced by recombinant DNA (rDNA) technology in animal cell cultures include enzymes, synthetic hormones, immunobiological (monoclonal antibodies, interleukins, lymphokines), and anticancer agents.

So, the correct answer is option C.

Consider the following statements (a-e) each with one or two blanks.


a. Lactobacillus promotes the curdling of milk by creating a (1) environment.
b. Vaccines employ the use of (2). They give protection against (3) diseases.
c. The (4) Anopheles mosquitoes are carriers of malaria and dengue is spread by (5) Aedes mosquito.
d. The crops that require more water for growth and are sown in the month of June are called (6) crops, while those that require less water for growth and are grown during the winter season are called (7) crops.
e. Manual scattering of seeds in the field is called __(8)_.

Select the correct option to fill any four or five blanks.

zoology diseases and immunity vaccine and immunization infectious diseases - transmission and prevention infectious diseases and how to prevent them

  1. (1) Acidic , (2) antibodies, (3) bacterial, (4) female

  2. (1) Alkaline, (4) female, (5) male, (6) kharif, (7) rabi

  3. (1) Acidic, (6) kharif, (7) rabi, (8) winnowing

  4. (2) Weak germs, (4) female, (5) female, (6) kharif, (7) rabi

Show answer
Correct Option: D
Explanation:

Lactobacillus promotes curdling of milk by creating an acidic environment. A vaccine is a biological preparation that provides active acquired immunity to a particular disease. It is made from weakened or killed forms of the microbe, its toxins or one of its surface proteins. Human malaria is transmitted only by females of the genus Anopheles. Dengue is spread through the bite of the female mosquito (Aedes aegypti). Kharif crops are those crops which are grown in monsoon season from the month of June to September. They need more water than rabi crops for their growth and development. Broadcasting is the method of random scattering of seeds on the surface of the seedbed. It can be done manually or mechanically.

So, the correct answer is option D.