31.Which of the following is correct regarding AIDS causative agent HIV?- (1)HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase
- (2)HIV is unenveloped retrovirus
- (3)HIV does not escape but attacks the acquired immune response
- (4)HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase
32.Common cold is not cured by antibiotics because it is:- (1)not an infectious disease
- (2)caused by a virus
- (3)caused by a Gram-positive bacterium
- (4)caused by a Gram-negative bacterium
33.Which one of the following organisms is scientifically and correctly named, correctly printed according to the International Rules of Nomenclature and correctly described?- (1)Plasmodium falciparum – a protozoan pathogen causing the most serious type of malaria.
- (2)Felis tigris – The Indian tiger is well protected in Gir forests.
- (3)E. Coli – The full name is Entamoeba coli, a commonly occurring bacterium in human intestine.
- (4)Musca domestica – The common house lizards, a reptile.
34.To which type of barriers under innate immunity, do the saliva in the mouth and the tears from the eyes, belong?- (1)Physiological barriers
- (2)Physical barriers
- (3)Cytokine barriers
- (4)Cellular barriers
35.Which of the following sexually transmitted diseases do not specifically affect reproductive organs?- (1)Genital warts and Hepatitis-B
- (2)Syphilis and Genital herpes
- (3)AIDS and Hepatitis B
- (4)Chlamydiasis and AIDS
36.Which of the following sexually transmitted diseases is not completely curable?- (1)Gonorrhoea
- (2)Genital warts
- (3)Genital herpes
- (4)Chlamydiasis
37.In which genetic condition, each cell in the affected person has three sex chromosomes XXY?- (1)Thalassemia
- (2)Kleinfelter's Syndrome
- (3)Phenylketonuria
- (4)Turner's Syndrome
38.Select the correct statement with respect to diseases and immunization.- (1)If due to some reason B and T lymphocytes are damaged, the body will not produce antibodies against a pathogen.
- (2)Injection of dead/inactivated pathogens causes passive immunity.
- (3)Certain protozoans have been used in mass production of hepatitis B vaccine.
- (4)Injection of snake antivenom against snake bite is an example of active immunization.
39.Which of the following statements is not true for cancer cells in relation to mutations.- (1)Mutations in proto-oncogenes accelerate the cell cycle
- (2)Mutations destroy telomerase inhibitor
- (3)Mutations inactivate the cell control
- (4)Mutations inhibit production of telomerase
40.Select the correct statement from the ones given below.- (1)Barbiturates when given to criminals make them tell the truth.
- (2)Morphine is often given to persons who have undergone surgery as a pain killer.
- (3)Chewing tobacco lowers blood pressure and heart rate.
- (4)Cocaine is given to patients after surgery as it stimulates recovery
41.Which one of the following human organs is often called the ‘graveyard’ of RBCs?- (1)Kidney
- (2)Spleen
- (3)Liver
- (4)Gall bladder
42.A disease caused by an autosomal primary non-disjunction is:- (1)Klinefelter's Syndrome
- (2)Turner's Syndrome
- (3)Sickel Cell Anemia
- (4)Down's Syndrome
43.Drug called 'Heroin' is synthesized by :- (1)methylation of morphine
- (2)acetylation of morphine
- (3)glycosylation of morphine
- (4)nitration of morphine
44.Select the option including all sexually transmitted diseases.- (1)Cancer, AIDS, Syphilis
- (2)Gonorrhoea, Syphilis, Genital herpes
- (3)Gonorrhoea, Malaria, Gential herpes
- (4)AIDS, Malaria, Filaria
45.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:- (1)Allergic response
- (2)Graft rejection
- (3)Auto-immune disease
- (4)Active immunity
46.Which of the following immunoglobulins does constitute the largest percentage in human milk?- (1)Ig M
- (2)Ig A
- (3)Ig G
- (4)Ig D
47.If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?- (1)Serum globulins
- (2)Fibrinogin in plasma
- (3)Serum albumins
- (4)Haemocytes
48.Which one of the following statements is correct?- (1)Malignant tumours may exhibit metastasis
- (2)Patients who have undergone surgery are given cannabinoids to relieve pain
- (3)Benign tumours show the property of metastasis
- (4)Heroin accelerates body functions
49.In a standard ECG, which one of the following alphabets is the correct representation of the respective activity of the human heart?- (1)P – depolarisation of the atria
- (2)R – repolarisation of ventricles
- (3)S – start of systole
- (4)T – end of diastole
50.Match the following diseases with the causative organism and select the correct option. Column - I(A) Typhoid(B) Pneumonia(C) Filariasis(D) MalariaColumn - II(I) Wuchereria(II) Plasmodium(III) Salmonella(IV) Haemophilus- (1)(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
- (2)(A)-(II), (B)-(I), (C)-(III), (D)-(IV)
- (3)(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
- (4)(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
51.Match the following: List-I(A) Filariasis(B) Amoebiasis(C) Pneumonia(D) RingwormList-II(I) Haemophilus influenzae(II) Trichophyton(III) Wuchereria bancrofti(IV) Entamoeba histolytica Choose the correct answer from the options given below.- (1)(A)-(III), (B)-(IV), (C)-(I), (D)-(II)
- (2)(A)-(I), (B)-(II), (C)-(IV), (D)-(III)
- (3)(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
- (4)(A)-(IV), (B)-(I), (C)-(III), (D)-(II)
52.Cri–du–chat syndrome in humans is caused by the :-- (1)Fertilization of an XX egg by a normal Y–bearing sperm
- (2)Loss of half of the short arm of chromosome 5
- (3)Loss of half of the long arm of chromosome 5
- (4)Trisomy of 21st chromosome
53.Which of the following is correct regarding AIDS causative agent HIV?- (1)HIV is unenveloped retrovirus.
- (2)HIV does not escape but attacks the required immune response.
- (3)HIV is enveloped virus containing one molecule of single-stranded RNA and one molecule of reverse transcriptase.
- (4)HIV is enveloped virus that contains two identical molecules of single-stranded RNA and two molecules of reverse transcriptase.
54.Coca alkaloid or cocaine is obtained from:- (1)Papaver somniferum
- (2)Atropha belladona
- (3)Erythroxylum coca
- (4)Datura
55.Lack of relaxation between successive stimuli in sustained muscle contraction is known as :-- (1)Spasm
- (2)Fatigue
- (3)Tetanus
- (4)Tonus
56.Antivenom injection contains preformed antibodies while polio drops that are administered into the body contain- (1)Activate pathogens
- (2)Harvested antibodies
- (3)Gamma globulin
- (4)Attenuated pathogens
57.Which one of the following statements is correct with respect to immunity?- (1)The antibodies against small pox pathogen are produced by T-lymphocytes.
- (2)Antibodies are protein molecules each of which has four light chains.
- (3)Rejection of a kidney graft is the function of B-lymphocytes.
- (4)Preformed antibodies need to be injected to treat the bite by a viper snake.
58.A human female with Turner's syndrome :-- (1)has 45 chromosomes with XO.
- (2)has one additional X chromosome.
- (3)exhibits male characters.
- (4)is able to produce children with normal husband.
59.Which one of the following options gives the correct matching of a disease with its causative organism and mode of infection? ((A): Typhoid, (B): Causative organism, (C): Mode of infection)- (1)(A): Typhoid, (B): Salmonella typhi, (C): With inspired air
- (2)(A): Pneumonia, (B): Streptococcus pneumonia, (C): Droplet infection
- (3)(A): Elephantiasis, (B): Wuchereria bancrofti, (C): With infected water and food
- (4)(A): Malaria, (B): Plasmodium vivax, (C): Bite of male Anopheles mosquito
60.The first clinical gene therapy was given for treating :- (1)Rheumatoid arthritis
- (2)Adenosine deaminase deficiency
- (3)Diabetes mellitus
- (4)Chicken po
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