B:-They mediate transduction and facilitate drug resistance
C:-They are used in phage therapy
D:-All of the above
Correct Answer:- Option-D
Question94:-The staining technique used for demonstration of Negri bodies
A:-Field's stain
B:-H and E stain
C:-Seller's stain
D:-Wright's stain
Correct Answer:- Option-C
Question95:-All are true regarding Antigenic drift except,

42-11 produces abrupt, drastic and discontinuous variation in antigenic
structure of the virus

B:-It is due to mutation and selection

C:-it produces periodic epidemics of influenza

D:-Characterised by presence of antibodies to the predecessor virus strains
Correct Answer:- Option-A

Question96:-All the following are clinical conditions produced by Parvo virus B-19
except,

A:-Pure red cell aplasia
B:-Erythema infectiosum
C:-Genital tumours
D:-Aplastic crisis
Correct Answer:- Option-C
Question97:-All are regarding NACO (National AIDS Control Organisation) except,

A:-NACO, Ministry of Health and Family Welfare, GOI has laid out guidelines
and strategies for screening, testing and monitoring HIV infected or suspected
individuals.

B:-Strategy 1 is used for Surveillance purposes

C:-Strategy 11 B is used for determining HIV status of clinically symptomatic
suspected cases in which highly sensitive screening and confirmatory tests are
used.

D:-Strategy 111 is used for asymptomatic individuals
Correct Answer:- Option-B
Question98:-All are human prion diseases except,
A:-Kuru
B:-Scrapie
C:-Creutzfeldt-Jakob disease