AIDS is characterized by the presence of:

  • Nosocomial infections

  • Iatrogenic infections

  • Opportunistic infections

  • Subclinical infections  

The receptors for the drug shown below are located in :

Morphine - Wikipedia

  • CNS and CVS

  • CVS and GIT

  • CNS and GIT

  • CNS and PNS

Study the diagram given and choose the incorrect statement :

  • D : New viral DNA is produced by the infected cell

  • A : retrovirus replicates outside the cell

  • B : viral DNA is produced by the host Reverse transcriptase 

  • C : viral DNA incorporates into the host genome

In the given diagram, A and B represent respectively:

  • The N and the C terminus of the polypeptide

  • The C and the N terminus of the polypeptide

  • The constant and variable regions of the antibody molecule

  • The variable and constant regions of the antibody molecule

Consider the given stages in the life cycle of Plasmodium and choose the correctly matched pair :

  • A : Merozites infect human when mosquito bites

  • B : Parasite reproduced sexually in liver cells

  • C : Symptoms of malaria 

  • D : Fertilization in hemocoel of the mosquito

Consider the following statements:

I. Plasmodium falciparum causes malignant tertian malaria

II. Release of hemosiderin from burst RBCs is responsible for paroxysms of malarial attacks

III. Sporozoites are the infectious forms of Plasmodium

Which of the above statements are true?

  • I and II only

  • I and III only

  • II and III only

  • I, II, and III

Consider the following statements:

I. Morphine is clinically used as an analgesic and its receptors are located in CNS and GIT.

II. Cocaine and amphetamines are CNS stimulants and the later is used clinically to treat narcolepsy and morbid obesity.

III. Atropine is a parasympathomimetic drug used to dilate pupil and increase heart rate.

Which of the above statements are true?

  • I and II only

  • I and III only

  • II and III only

  • I, II and III

Allergies could be because of

  •     Protected environment provided in early life

  •     Modern day lifestyle

  •    More sensitivity to the environment

  •    All of these

Consider the following statements:

I. Cancer is essentially a genetic disease caused by multiple mutational events.

II. Cancerous cells are rapidiy dividing cells that exhibit contact inhibition.

III. Metastasis is the most feared complication of any cancer

Which of the above statements are true?

  • I and II only

  • I and III only

  • II and III only

  • I, II and III

Consider the following statements:

I. HIV is a reterovirus.
II. It infects and destroys the CD4 T-ymphocytes
III. The newer antiretroviral drugs are a cure for HIV infection

Which of the above statements are true?

  • I and II only

  • I and III only

  • II and III only

  • I, II and III

Consider the following statements:

I. Innate immunity is non-specific type of defence, that is present at the time of birth.

II. Acquired immunity is pathogen specific and is characterized by memory

III. Memory-based acquired immunity developed in higher vertebrates based on ability to distinguish self from non-self

Which of the following statements are true?

  • I and II only

  • I and III only

  • II and III only

  • I, II and III

Match each disease with its correct type of vaccine.

     Column I

     Column II

A. Tuberculosis

1. Harmless virus

B. Whooping cough    

2. Inactivated toxin

C. Diphtheria

3. Killed bacteria

D. Polio

4. Harmless bacteria

Codes:

 

A     

B     

C     

D

(1)    

2

1

3

4

(2)

3

2

4

1

(3)

4

3

2

1

(4)  

1

2

4

3
  • 1
  • 2
  • 3
  • 4

Transplantation of tissues/organs fails often due to non-acceptance by the patient's body. Which type of immune-response is responsible for such rejections?

  • Autoimmune response

  • Cell-mediated immune response

  • Hormonal immune response

  • Physiological immune response

Which of the following sets of diseases is caused by bacteria?

  • Cholera and tetanus

  • Typhoid and smallpox

  • Tetanus and mumps

  • Herpes and influenza

Which of the following is correct regarding AIDS causative agent HIV?

  • HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase

  • HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase

  • HIV is not enveloped retrovirus

  • HIV does not escape but attacks the acquired immune response

Asthma may be attributed to

  • allergic reaction of the mast cells in the lungs
  • inflammation of the trachea
  • accumulation of fluid in the lungs
  • bacterial infection of the lungs

In higher vertebrates, the immune system can distinguish self-cells and non-self. If this property is lost due to genetic abnormality and it attacks self-cells, then it leads to 

  • graft rejection 
  • auto-immune disease 
  • activate immunity 
  • allergic response 

Antivenom injection contains preformed antibodies while polio drops that are

administered into the body contain

  • harvested antibodies

  • gamma globulin

  • attenuated pathogens

  • activated pathogens

Which of the following statements is not true for cancer cells in relation to mutations?

  • Mutations destroy telomerase inhibitor

  • Mutations inactivate the cell control

  • Mutations inhibit production of telomerase

  • Mutations in proto-oncogenes accelerate the cell cycle

If you suspect major deficiency of antibodies in a person, to which of the following would

you look for confirmatory evidence?

  • Fibrinogen in plasma

  • Serum albumins

  • Haemocytes

  • Serum globulins

Grafted kidney may be rejected in a patient due to

  • Humoral immune response

  • Cell-mediated immune response

  • Passive immune response

  • Innate immune response

Whic of the following diseases is caused by a protozoan?

  • Syphilis

  • Influenza

  • Babesiosis

  • Blastomycosis

Which of the following viruses is not transferred through semen of an infected male?

  • Hepatitis-B virus

  • Human immunodeficiency virus

  • Chikungunya virus

  • Ebola virus

The active form of Entamoeba histolytica feed upon

  • Erythrocytes, mucosa and submucosa of colon

  • Mucosa and submucosa of colon only

  • Food in intestine

  • Blood only

Which is the particular type of drug that is obtained from the plant whose one flowering branch is shown below?

  • Hallucinogen

  • Depressant

  • Stimulant

  • Pain-killer

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

  • Within 15 days of sexual contact with an infected person 

  • When the infected retro virus enters host cells

  • When HIV damages large number of helper T-Lymphocytes

  • When the viral DNA is produced by reverse transcriptase 

The cell-mediated immunity inside the human body is carried out by 

  • T-lymphocytes

  • B-lymphocytes

  • thrombocytes

  • erythrocytes

Motile zygote of Plasmodium occurs in

  • gut of female Anopheles

  • salivary glands of Anopheles

  • human RBCs

  • human liver

Widal test is carried out to test 

  • malaria

  • diabetes mellitus 

  • HIV/AIDS

  • typhoid fever

Common cold differs from pneumonia in that

deficiency disease

common cold has no effective vaccine

Haemophilus influenzae

respiratory passage but not the lungs

  • pneumonia is a communicable disease, whereas the common cold is a nutritional

  • pneumonia can be prevented by a live attenuated bacterial vaccine, whereas the

  • pneumonia is caused by a virus, while the common cold is caused by the bacterium

  • pneumonia pathogen infects alveoli whereas the common cold affects nose and

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Practice Zoology Quiz Questions and Answers