The so-called tertain periodicity of Plasmodium vivax refers to the 
(a) pre-erythrocytic phase 
(b) post erythrocytic phase 
(c) erythrocytic phase 
(d) sexual phase.

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Hybridoma is a synonym of

(a) polyclonal antibody
(b) monoclonal antibody
(c) polymerase chain reaction
(d) fluorescent in situ hybridization

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Communicability of disease depends upon the availability of a 
(a) pathogen 
(b) parasitic
(c) healthy person 
(d) susceptible person

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Which of the following is used to make vaccines?
(a) Activated pathogen
(b) Pathogen blocked by antibody 
(c) Attenuated pathogen 
(d) None of the above

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An organism which has been used as a weapon in biological war causes which of the following disease?

(a) malaria

(b) common cold

(c) influenza

(d) anthrax

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Opium is obtained from which part of the plant Papaver somniferous?

(a) Inflorescence

(b) Male part (dried)

(c) Fruit (unripe)

(d) Seeds

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Malaria infection can be transmitted by 
(a) the bite of infected female Anopheles mosquito
(b) vertical transmission through placental defect
(c) blood transfusion 
(d) all of these.

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Memory cells are stored in

(a) spleen

(b) lymph nodes

(c) both (a) and (b)

(d) a specialised area of brain tissue

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The highly pathogenic influenza A (H5NI) virus infects 
(a) poultry 
(b) ducks
(c) migratory birds
(d) all of these.

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Enteric fever is caused by
(a) Salmonella enteritidis
(b) S. typhi
(c) S. typhimurium
(d) none of the above

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