Stem cells arise from

  • bone marrow

  • yolk sac

  • foetal liver

  • all the above.

Ingestion of food and water contaminated with infective eggs is the primary route of

infection for 

  • Taenia solium

  • Wuchereria bancrofti

  • Trichinella sp.

  • Ascaris lumbricoides

The degree of pathogenicity of a microorganism is referred to as 

  • virulence 

  • prevalence 

  • severity

  • pathogenic efficacy

The following hepatitis viruses are RNA except

  • hepatitis B virus

  • hepatitis A virus

  • hepatitis G virus

  • hepatitis E virus.

Cocaine is a stimulant, which may cause addiction. It is an alkaloid obtained from

  •  Eucalyptus

  •  Erythroxylum

  •  Rauwolfia

  •  Papaver

Which of the following is non-pathogenic bacteria of colon?

  •  Escherichia coli

  •  Balantidium coli

  •  Entamoeba coli

  •  Enterobius vermicularis

Which of the following is a component of cell mediated immunity?

  • B-cells

  • α-cells

  • T-cells

  • Both 1. and 2.

Which of the following is involved in allergic reaction ?

  • IgM

  • IgM and IgG

  • IgA

  • IgE

In Entamoeba histolytica, the presence of chromatid bodies is characteristic of

  • precystic stage

  • mature quadrinucleate stage

  • trophozoite stage

  • mature binucleate stage.

Adults of Wuchereria bancrofti attacks

  • exeretory system

  • nervous system 

  • digestive system

  • lymphatic system.

The sites of the first, second and third moulting of the Ascaris larva are respectively

  • soil, lung and intestine 

  • liver, stomach and intestine 

  • soil, alveoli and alveoli

  • soil, intestine and lung.

The crystal of lead zirconate is a key component

  • electroencephalography

  • electrocardiography

  • magnetoencephalography

  • sonography

Just as Xenopsylla is to Yersenia pestis, so is:

  •  Glossina palpalis to Wuchereria bancrofti

  •  Culex to Plasmodium falciparum 

  •  Homo sapiens to taenia solium 

  •  Phlebotomus to Leishmania donovani

Which one of the following is a matching pair of a drug and its category?

  • Amphetamines - stimulant

  • Lysergic acid dimethyl amide - narcotic

  • Heroin - psychotropic

  • Benzodiazepine - pain killer

Electron beam therapy is a kind of radiation therapy to treat

  • Enlarged prostrate gland

  • Gall bladder stones by breaking them 

  • Certain types of cancer 

  • Kidney stones.

Severe Acute Respiratory Syndrome (SARS)

  • is caused by a variant of Pneumococcus pneumoniae

  • is caused by a variant of the common cold virus (corona virus)

  • is an acute form of asthma

  • affects non-vegetarians much faster than the vegetarians

The tratment of snake-bite by antivenom is an example of 


  • artificially acquired active immunity 

  • artificially acquired passive immunity 

  • naturally acquired passive immunity 

  • specific natural immunity. 

An insect bite may result in inflammation of that spot. This is triggered by the alarm chemicals such as 

  • histamine and dopamine
  • histamine and kinins

  • interferons and opsonin 

  • interferons and histones 

Two of the body parts which do not appear in MRI may be

  • molar teeth and eye lens 
  • scapula and canines 

  • ligaments and ribs 

  • tendons and premolars.

A young drug addict used to show symptoms of depressed brain activity, feeling of

calmness, relaxation and drowsiness. Possibly he was taking

  • amphetamine

  • marijuna

  • pethidine

  • valium

Antigen binding site in an antibody is found between 

upon the nature of antigen.

  • two light chains

  • two heavy chains

  • one heavy and one light chain 

  • either between two light chains or between one heavy and one light chain depending

A person who shows unpredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from

  • borderline personality disorder (BPD)

  • mood disorder

  • addictive disorder

  • schizophrenia.

When children play bare footed in pools of dirty water and flood water, they may suffer from disease like

  • leptospirosis and bilharzia
  • malaria, amoebic dysentery and leptospirosis

  • bilharzia, infective hepatitis and diarrhoea

  • guinea worm infection, elephantiasis and amoebic dysentery

Which of the following is an eye disease?

  • Hepatitis

  • Measles

  • Glaucoma

  • Bronchitis

Smoking addiction is harmful because it produces polycyclic aromatic hydrocarbons, which cause 

  • reduction in oxygen transport
  • increase in blood pressure 

  • cancer 

  • retardation of growth of foetus

The main reason why antibiotics could not solve all the problems of bacteria mediated diseases is 

  • insensitivity of the individual following prolonged exposure to antibiotics
  • inactivation of antibiotics by bacterial enzymes

  • decreased efficiency of the immune system

  • the development of mutant strains resistant to antibiotics.

Which of the following sets includes all bacterial disease?

  • Cholera, typhoid, mumps
  • Tetanus, tuberculosis, measles

  • Malaria, mumps, polimyelitis

  • Diphtheria, leprosy, plague

The binding of antibodies to the antigens to produce a large insolube complex is known as 

  • antibody-antigen complex
  • agglutination 

  • immunisation 

  • suppressor cell reaction.

Intermediate host is absent in the infection of

  • Plasmodium

  • Entamoeba

  • Trypanosoma

  • filarial worm.

Cytokines that provide non specific immunity against virus are

 

  • interleukin
  • tumour necrosis
  • colony stimulating
  • interferon

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Practice Zoology Quiz Questions and Answers